Home / 20,709.52-31,057.38-6,666.26

Finding the Fourth Proportional to 20,709.52, 31,057.38 and 6,666.26

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Solution

The fourth proportional to 20,709.52, 31,057.38 and 6,666.26 is: 9,997.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,709.52 : 31,057.38 = 6,666.26 : x
  2. Step 2: Convert to fraction form
    20,709.52/31,057.38 = 6,666.26/x
  3. Step 3: Cross multiply
    20,709.52x = 31,057.38 × 6,666.26
  4. Step 4: Simplify right side
    20,709.52x = 207,036,414.71
  5. Step 5: Solve for x
    x = 207,036,414.71/20,709.52
  6. Step 6: Final answer
    x = 9,997.16

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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.