Home / 38,122.13-52,603.56-21,125.55

Finding the Fourth Proportional to 38,122.13, 52,603.56 and 21,125.55

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Solution

The fourth proportional to 38,122.13, 52,603.56 and 21,125.55 is: 29,150.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,122.13 : 52,603.56 = 21,125.55 : x
  2. Step 2: Convert to fraction form
    38,122.13/52,603.56 = 21,125.55/x
  3. Step 3: Cross multiply
    38,122.13x = 52,603.56 × 21,125.55
  4. Step 4: Simplify right side
    38,122.13x = 1,111,279,136.96
  5. Step 5: Solve for x
    x = 1,111,279,136.96/38,122.13
  6. Step 6: Final answer
    x = 29,150.50

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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.