Home / 20,487.18-30,727.18-5,697.25

Finding the Fourth Proportional to 20,487.18, 30,727.18 and 5,697.25

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Solution

The fourth proportional to 20,487.18, 30,727.18 and 5,697.25 is: 8,544.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487.18 : 30,727.18 = 5,697.25 : x
  2. Step 2: Convert to fraction form
    20,487.18/30,727.18 = 5,697.25/x
  3. Step 3: Cross multiply
    20,487.18x = 30,727.18 × 5,697.25
  4. Step 4: Simplify right side
    20,487.18x = 175,060,244.13
  5. Step 5: Solve for x
    x = 175,060,244.13/20,487.18
  6. Step 6: Final answer
    x = 8,544.87

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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.