Home / 20,221.57-30,338.23-8,373.16

Finding the Fourth Proportional to 20,221.57, 30,338.23 and 8,373.16

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Solution

The fourth proportional to 20,221.57, 30,338.23 and 8,373.16 is: 12,562.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221.57 : 30,338.23 = 8,373.16 : x
  2. Step 2: Convert to fraction form
    20,221.57/30,338.23 = 8,373.16/x
  3. Step 3: Cross multiply
    20,221.57x = 30,338.23 × 8,373.16
  4. Step 4: Simplify right side
    20,221.57x = 254,026,853.91
  5. Step 5: Solve for x
    x = 254,026,853.91/20,221.57
  6. Step 6: Final answer
    x = 12,562.17

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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.