Home / 20,710.92-31,062.03-6,672.21

Finding the Fourth Proportional to 20,710.92, 31,062.03 and 6,672.21

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Solution

The fourth proportional to 20,710.92, 31,062.03 and 6,672.21 is: 10,006.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710.92 : 31,062.03 = 6,672.21 : x
  2. Step 2: Convert to fraction form
    20,710.92/31,062.03 = 6,672.21/x
  3. Step 3: Cross multiply
    20,710.92x = 31,062.03 × 6,672.21
  4. Step 4: Simplify right side
    20,710.92x = 207,252,387.19
  5. Step 5: Solve for x
    x = 207,252,387.19/20,710.92
  6. Step 6: Final answer
    x = 10,006.91

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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.