Home / 20,885.64-31,331.46-6,092.64

Finding the Fourth Proportional to 20,885.64, 31,331.46 and 6,092.64

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Solution

The fourth proportional to 20,885.64, 31,331.46 and 6,092.64 is: 9,139.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885.64 : 31,331.46 = 6,092.64 : x
  2. Step 2: Convert to fraction form
    20,885.64/31,331.46 = 6,092.64/x
  3. Step 3: Cross multiply
    20,885.64x = 31,331.46 × 6,092.64
  4. Step 4: Simplify right side
    20,885.64x = 190,891,306.45
  5. Step 5: Solve for x
    x = 190,891,306.45/20,885.64
  6. Step 6: Final answer
    x = 9,139.84

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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.