Home / 20,845.77-28,767.15-11,414.52

Finding the Fourth Proportional to 20,845.77, 28,767.15 and 11,414.52

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Solution

The fourth proportional to 20,845.77, 28,767.15 and 11,414.52 is: 15,752.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845.77 : 28,767.15 = 11,414.52 : x
  2. Step 2: Convert to fraction form
    20,845.77/28,767.15 = 11,414.52/x
  3. Step 3: Cross multiply
    20,845.77x = 28,767.15 × 11,414.52
  4. Step 4: Simplify right side
    20,845.77x = 328,363,209.02
  5. Step 5: Solve for x
    x = 328,363,209.02/20,845.77
  6. Step 6: Final answer
    x = 15,752.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.