Home / 39,432.36-54,414.26-21,523.74

Finding the Fourth Proportional to 39,432.36, 54,414.26 and 21,523.74

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Solution

The fourth proportional to 39,432.36, 54,414.26 and 21,523.74 is: 29,701.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,432.36 : 54,414.26 = 21,523.74 : x
  2. Step 2: Convert to fraction form
    39,432.36/54,414.26 = 21,523.74/x
  3. Step 3: Cross multiply
    39,432.36x = 54,414.26 × 21,523.74
  4. Step 4: Simplify right side
    39,432.36x = 1,171,198,384.53
  5. Step 5: Solve for x
    x = 1,171,198,384.53/39,432.36
  6. Step 6: Final answer
    x = 29,701.45

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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.