Home / 20,712.62-28,577.13-11,759.96

Finding the Fourth Proportional to 20,712.62, 28,577.13 and 11,759.96

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Solution

The fourth proportional to 20,712.62, 28,577.13 and 11,759.96 is: 16,225.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712.62 : 28,577.13 = 11,759.96 : x
  2. Step 2: Convert to fraction form
    20,712.62/28,577.13 = 11,759.96/x
  3. Step 3: Cross multiply
    20,712.62x = 28,577.13 × 11,759.96
  4. Step 4: Simplify right side
    20,712.62x = 336,065,905.71
  5. Step 5: Solve for x
    x = 336,065,905.71/20,712.62
  6. Step 6: Final answer
    x = 16,225.18

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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.