Home / 20,347.11-30,536.28-9,105.93

Finding the Fourth Proportional to 20,347.11, 30,536.28 and 9,105.93

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Solution

The fourth proportional to 20,347.11, 30,536.28 and 9,105.93 is: 13,665.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347.11 : 30,536.28 = 9,105.93 : x
  2. Step 2: Convert to fraction form
    20,347.11/30,536.28 = 9,105.93/x
  3. Step 3: Cross multiply
    20,347.11x = 30,536.28 × 9,105.93
  4. Step 4: Simplify right side
    20,347.11x = 278,061,228.14
  5. Step 5: Solve for x
    x = 278,061,228.14/20,347.11
  6. Step 6: Final answer
    x = 13,665.88

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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.