Home / 40,487.20-60,716.40-18,311.20

Finding the Fourth Proportional to 40,487.20, 60,716.40 and 18,311.20

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Solution

The fourth proportional to 40,487.20, 60,716.40 and 18,311.20 is: 27,460.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,487.20 : 60,716.40 = 18,311.20 : x
  2. Step 2: Convert to fraction form
    40,487.20/60,716.40 = 18,311.20/x
  3. Step 3: Cross multiply
    40,487.20x = 60,716.40 × 18,311.20
  4. Step 4: Simplify right side
    40,487.20x = 1,111,790,143.68
  5. Step 5: Solve for x
    x = 1,111,790,143.68/40,487.20
  6. Step 6: Final answer
    x = 27,460.29

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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.