Home / 39,337.78-54,285.45-21,432.92

Finding the Fourth Proportional to 39,337.78, 54,285.45 and 21,432.92

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Solution

The fourth proportional to 39,337.78, 54,285.45 and 21,432.92 is: 29,577.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,337.78 : 54,285.45 = 21,432.92 : x
  2. Step 2: Convert to fraction form
    39,337.78/54,285.45 = 21,432.92/x
  3. Step 3: Cross multiply
    39,337.78x = 54,285.45 × 21,432.92
  4. Step 4: Simplify right side
    39,337.78x = 1,163,495,707.01
  5. Step 5: Solve for x
    x = 1,163,495,707.01/39,337.78
  6. Step 6: Final answer
    x = 29,577.06

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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.