Home / 38,534.22-53,176.56-21,538.80

Finding the Fourth Proportional to 38,534.22, 53,176.56 and 21,538.80

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Solution

The fourth proportional to 38,534.22, 53,176.56 and 21,538.80 is: 29,723.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,534.22 : 53,176.56 = 21,538.80 : x
  2. Step 2: Convert to fraction form
    38,534.22/53,176.56 = 21,538.80/x
  3. Step 3: Cross multiply
    38,534.22x = 53,176.56 × 21,538.80
  4. Step 4: Simplify right side
    38,534.22x = 1,145,359,290.53
  5. Step 5: Solve for x
    x = 1,145,359,290.53/38,534.22
  6. Step 6: Final answer
    x = 29,723.17

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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.