Home / 42,711.85-64,024.89-14,612.68

Finding the Fourth Proportional to 42,711.85, 64,024.89 and 14,612.68

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Solution

The fourth proportional to 42,711.85, 64,024.89 and 14,612.68 is: 21,904.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,711.85 : 64,024.89 = 14,612.68 : x
  2. Step 2: Convert to fraction form
    42,711.85/64,024.89 = 14,612.68/x
  3. Step 3: Cross multiply
    42,711.85x = 64,024.89 × 14,612.68
  4. Step 4: Simplify right side
    42,711.85x = 935,575,229.61
  5. Step 5: Solve for x
    x = 935,575,229.61/42,711.85
  6. Step 6: Final answer
    x = 21,904.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.