Home / 39,139.53-54,387.24-38,733.12

Finding the Fourth Proportional to 39,139.53, 54,387.24 and 38,733.12

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Solution

The fourth proportional to 39,139.53, 54,387.24 and 38,733.12 is: 53,822.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139.53 : 54,387.24 = 38,733.12 : x
  2. Step 2: Convert to fraction form
    39,139.53/54,387.24 = 38,733.12/x
  3. Step 3: Cross multiply
    39,139.53x = 54,387.24 × 38,733.12
  4. Step 4: Simplify right side
    39,139.53x = 2,106,587,493.39
  5. Step 5: Solve for x
    x = 2,106,587,493.39/39,139.53
  6. Step 6: Final answer
    x = 53,822.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.