Home / 20,108.55-30,150.68-9,013.17

Finding the Fourth Proportional to 20,108.55, 30,150.68 and 9,013.17

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Solution

The fourth proportional to 20,108.55, 30,150.68 and 9,013.17 is: 13,514.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108.55 : 30,150.68 = 9,013.17 : x
  2. Step 2: Convert to fraction form
    20,108.55/30,150.68 = 9,013.17/x
  3. Step 3: Cross multiply
    20,108.55x = 30,150.68 × 9,013.17
  4. Step 4: Simplify right side
    20,108.55x = 271,753,159.39
  5. Step 5: Solve for x
    x = 271,753,159.39/20,108.55
  6. Step 6: Final answer
    x = 13,514.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.