Home / 20,461.38-30,691.98-5,670.25

Finding the Fourth Proportional to 20,461.38, 30,691.98 and 5,670.25

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Solution

The fourth proportional to 20,461.38, 30,691.98 and 5,670.25 is: 8,505.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,461.38 : 30,691.98 = 5,670.25 : x
  2. Step 2: Convert to fraction form
    20,461.38/30,691.98 = 5,670.25/x
  3. Step 3: Cross multiply
    20,461.38x = 30,691.98 × 5,670.25
  4. Step 4: Simplify right side
    20,461.38x = 174,031,171.24
  5. Step 5: Solve for x
    x = 174,031,171.24/20,461.38
  6. Step 6: Final answer
    x = 8,505.35

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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.