Home / 40,422.40-60,644.56-15,449.30

Finding the Fourth Proportional to 40,422.40, 60,644.56 and 15,449.30

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Solution

The fourth proportional to 40,422.40, 60,644.56 and 15,449.30 is: 23,178.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,422.40 : 60,644.56 = 15,449.30 : x
  2. Step 2: Convert to fraction form
    40,422.40/60,644.56 = 15,449.30/x
  3. Step 3: Cross multiply
    40,422.40x = 60,644.56 × 15,449.30
  4. Step 4: Simplify right side
    40,422.40x = 936,916,000.81
  5. Step 5: Solve for x
    x = 936,916,000.81/40,422.40
  6. Step 6: Final answer
    x = 23,178.14

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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.