Home / 42,465.67-63,691.31-12,876.44

Finding the Fourth Proportional to 42,465.67, 63,691.31 and 12,876.44

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Solution

The fourth proportional to 42,465.67, 63,691.31 and 12,876.44 is: 19,312.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,465.67 : 63,691.31 = 12,876.44 : x
  2. Step 2: Convert to fraction form
    42,465.67/63,691.31 = 12,876.44/x
  3. Step 3: Cross multiply
    42,465.67x = 63,691.31 × 12,876.44
  4. Step 4: Simplify right side
    42,465.67x = 820,117,045.47
  5. Step 5: Solve for x
    x = 820,117,045.47/42,465.67
  6. Step 6: Final answer
    x = 19,312.47

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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.