Home / 39,121.76-53,984.76-22,125.12

Finding the Fourth Proportional to 39,121.76, 53,984.76 and 22,125.12

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Solution

The fourth proportional to 39,121.76, 53,984.76 and 22,125.12 is: 30,530.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,121.76 : 53,984.76 = 22,125.12 : x
  2. Step 2: Convert to fraction form
    39,121.76/53,984.76 = 22,125.12/x
  3. Step 3: Cross multiply
    39,121.76x = 53,984.76 × 22,125.12
  4. Step 4: Simplify right side
    39,121.76x = 1,194,419,293.17
  5. Step 5: Solve for x
    x = 1,194,419,293.17/39,121.76
  6. Step 6: Final answer
    x = 30,530.82

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Find fourth proportional to 19,560.88, 26,992.38 and 11,062.56
Half scale
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Double scale
Find fourth proportional to 39,122.76, 53,986.14 and 22,126.12
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.