Home / 20,666.24-30,996.12-7,516.70

Finding the Fourth Proportional to 20,666.24, 30,996.12 and 7,516.70

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Solution

The fourth proportional to 20,666.24, 30,996.12 and 7,516.70 is: 11,273.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,666.24 : 30,996.12 = 7,516.70 : x
  2. Step 2: Convert to fraction form
    20,666.24/30,996.12 = 7,516.70/x
  3. Step 3: Cross multiply
    20,666.24x = 30,996.12 × 7,516.70
  4. Step 4: Simplify right side
    20,666.24x = 232,988,535.20
  5. Step 5: Solve for x
    x = 232,988,535.20/20,666.24
  6. Step 6: Final answer
    x = 11,273.87

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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.