Home / 42,022.17-63,042.48-12,442.31

Finding the Fourth Proportional to 42,022.17, 63,042.48 and 12,442.31

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Solution

The fourth proportional to 42,022.17, 63,042.48 and 12,442.31 is: 18,666.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,022.17 : 63,042.48 = 12,442.31 : x
  2. Step 2: Convert to fraction form
    42,022.17/63,042.48 = 12,442.31/x
  3. Step 3: Cross multiply
    42,022.17x = 63,042.48 × 12,442.31
  4. Step 4: Simplify right side
    42,022.17x = 784,393,965.53
  5. Step 5: Solve for x
    x = 784,393,965.53/42,022.17
  6. Step 6: Final answer
    x = 18,666.19

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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.