Home / 28,498.11-42,743.52-11,855.04

Finding the Fourth Proportional to 28,498.11, 42,743.52 and 11,855.04

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Solution

The fourth proportional to 28,498.11, 42,743.52 and 11,855.04 is: 17,781.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,498.11 : 42,743.52 = 11,855.04 : x
  2. Step 2: Convert to fraction form
    28,498.11/42,743.52 = 11,855.04/x
  3. Step 3: Cross multiply
    28,498.11x = 42,743.52 × 11,855.04
  4. Step 4: Simplify right side
    28,498.11x = 506,726,139.34
  5. Step 5: Solve for x
    x = 506,726,139.34/28,498.11
  6. Step 6: Final answer
    x = 17,781.04

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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.