Home / 20,584.17-28,406.70-11,631.87

Finding the Fourth Proportional to 20,584.17, 28,406.70 and 11,631.87

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Solution

The fourth proportional to 20,584.17, 28,406.70 and 11,631.87 is: 16,052.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.17 : 28,406.70 = 11,631.87 : x
  2. Step 2: Convert to fraction form
    20,584.17/28,406.70 = 11,631.87/x
  3. Step 3: Cross multiply
    20,584.17x = 28,406.70 × 11,631.87
  4. Step 4: Simplify right side
    20,584.17x = 330,423,041.53
  5. Step 5: Solve for x
    x = 330,423,041.53/20,584.17
  6. Step 6: Final answer
    x = 16,052.29

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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.