Home / 42,461.17-63,691.98-12,879.03

Finding the Fourth Proportional to 42,461.17, 63,691.98 and 12,879.03

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Solution

The fourth proportional to 42,461.17, 63,691.98 and 12,879.03 is: 19,318.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,461.17 : 63,691.98 = 12,879.03 : x
  2. Step 2: Convert to fraction form
    42,461.17/63,691.98 = 12,879.03/x
  3. Step 3: Cross multiply
    42,461.17x = 63,691.98 × 12,879.03
  4. Step 4: Simplify right side
    42,461.17x = 820,291,184.17
  5. Step 5: Solve for x
    x = 820,291,184.17/42,461.17
  6. Step 6: Final answer
    x = 19,318.62

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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.