Home / 20,702.18-28,565.25-11,750.06

Finding the Fourth Proportional to 20,702.18, 28,565.25 and 11,750.06

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Solution

The fourth proportional to 20,702.18, 28,565.25 and 11,750.06 is: 16,212.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702.18 : 28,565.25 = 11,750.06 : x
  2. Step 2: Convert to fraction form
    20,702.18/28,565.25 = 11,750.06/x
  3. Step 3: Cross multiply
    20,702.18x = 28,565.25 × 11,750.06
  4. Step 4: Simplify right side
    20,702.18x = 335,643,401.42
  5. Step 5: Solve for x
    x = 335,643,401.42/20,702.18
  6. Step 6: Final answer
    x = 16,212.95

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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.