Home / 20,702.68-28,565.94-11,750.56

Finding the Fourth Proportional to 20,702.68, 28,565.94 and 11,750.56

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Solution

The fourth proportional to 20,702.68, 28,565.94 and 11,750.56 is: 16,213.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702.68 : 28,565.94 = 11,750.56 : x
  2. Step 2: Convert to fraction form
    20,702.68/28,565.94 = 11,750.56/x
  3. Step 3: Cross multiply
    20,702.68x = 28,565.94 × 11,750.56
  4. Step 4: Simplify right side
    20,702.68x = 335,665,791.93
  5. Step 5: Solve for x
    x = 335,665,791.93/20,702.68
  6. Step 6: Final answer
    x = 16,213.64

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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.