Home / 20,614.31-28,447.72-11,182.87

Finding the Fourth Proportional to 20,614.31, 28,447.72 and 11,182.87

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Solution

The fourth proportional to 20,614.31, 28,447.72 and 11,182.87 is: 15,432.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,614.31 : 28,447.72 = 11,182.87 : x
  2. Step 2: Convert to fraction form
    20,614.31/28,447.72 = 11,182.87/x
  3. Step 3: Cross multiply
    20,614.31x = 28,447.72 × 11,182.87
  4. Step 4: Simplify right side
    20,614.31x = 318,127,154.56
  5. Step 5: Solve for x
    x = 318,127,154.56/20,614.31
  6. Step 6: Final answer
    x = 15,432.35

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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.