Home / 20,581.62-28,402.52-11,632.02

Finding the Fourth Proportional to 20,581.62, 28,402.52 and 11,632.02

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Solution

The fourth proportional to 20,581.62, 28,402.52 and 11,632.02 is: 16,052.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,581.62 : 28,402.52 = 11,632.02 : x
  2. Step 2: Convert to fraction form
    20,581.62/28,402.52 = 11,632.02/x
  3. Step 3: Cross multiply
    20,581.62x = 28,402.52 × 11,632.02
  4. Step 4: Simplify right side
    20,581.62x = 330,378,622.53
  5. Step 5: Solve for x
    x = 330,378,622.53/20,581.62
  6. Step 6: Final answer
    x = 16,052.12

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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.