Home / 20,614.32-28,447.62-11,182.89

Finding the Fourth Proportional to 20,614.32, 28,447.62 and 11,182.89

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Solution

The fourth proportional to 20,614.32, 28,447.62 and 11,182.89 is: 15,432.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,614.32 : 28,447.62 = 11,182.89 : x
  2. Step 2: Convert to fraction form
    20,614.32/28,447.62 = 11,182.89/x
  3. Step 3: Cross multiply
    20,614.32x = 28,447.62 × 11,182.89
  4. Step 4: Simplify right side
    20,614.32x = 318,126,605.22
  5. Step 5: Solve for x
    x = 318,126,605.22/20,614.32
  6. Step 6: Final answer
    x = 15,432.31

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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.