Home / 20,614.10-28,447.54-11,182.66

Finding the Fourth Proportional to 20,614.10, 28,447.54 and 11,182.66

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Solution

The fourth proportional to 20,614.10, 28,447.54 and 11,182.66 is: 15,432.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,614.10 : 28,447.54 = 11,182.66 : x
  2. Step 2: Convert to fraction form
    20,614.10/28,447.54 = 11,182.66/x
  3. Step 3: Cross multiply
    20,614.10x = 28,447.54 × 11,182.66
  4. Step 4: Simplify right side
    20,614.10x = 318,119,068.58
  5. Step 5: Solve for x
    x = 318,119,068.58/20,614.10
  6. Step 6: Final answer
    x = 15,432.11

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1.5x scale

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.