Home / 28,493.97-42,730.01-11,861.83

Finding the Fourth Proportional to 28,493.97, 42,730.01 and 11,861.83

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Solution

The fourth proportional to 28,493.97, 42,730.01 and 11,861.83 is: 17,788.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,493.97 : 42,730.01 = 11,861.83 : x
  2. Step 2: Convert to fraction form
    28,493.97/42,730.01 = 11,861.83/x
  3. Step 3: Cross multiply
    28,493.97x = 42,730.01 × 11,861.83
  4. Step 4: Simplify right side
    28,493.97x = 506,856,114.52
  5. Step 5: Solve for x
    x = 506,856,114.52/28,493.97
  6. Step 6: Final answer
    x = 17,788.19

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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.