Home / 20,474.46-30,711.70-5,687.10

Finding the Fourth Proportional to 20,474.46, 30,711.70 and 5,687.10

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Solution

The fourth proportional to 20,474.46, 30,711.70 and 5,687.10 is: 8,530.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474.46 : 30,711.70 = 5,687.10 : x
  2. Step 2: Convert to fraction form
    20,474.46/30,711.70 = 5,687.10/x
  3. Step 3: Cross multiply
    20,474.46x = 30,711.70 × 5,687.10
  4. Step 4: Simplify right side
    20,474.46x = 174,660,509.07
  5. Step 5: Solve for x
    x = 174,660,509.07/20,474.46
  6. Step 6: Final answer
    x = 8,530.65

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Similar ratio
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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.