Home / 39,239.96-54,151.28-21,335.04

Finding the Fourth Proportional to 39,239.96, 54,151.28 and 21,335.04

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Solution

The fourth proportional to 39,239.96, 54,151.28 and 21,335.04 is: 29,442.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,239.96 : 54,151.28 = 21,335.04 : x
  2. Step 2: Convert to fraction form
    39,239.96/54,151.28 = 21,335.04/x
  3. Step 3: Cross multiply
    39,239.96x = 54,151.28 × 21,335.04
  4. Step 4: Simplify right side
    39,239.96x = 1,155,319,724.85
  5. Step 5: Solve for x
    x = 1,155,319,724.85/39,239.96
  6. Step 6: Final answer
    x = 29,442.43

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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.