Home / 40,172.64-60,262.20-13,877.61

Finding the Fourth Proportional to 40,172.64, 60,262.20 and 13,877.61

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Solution

The fourth proportional to 40,172.64, 60,262.20 and 13,877.61 is: 20,817.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,172.64 : 60,262.20 = 13,877.61 : x
  2. Step 2: Convert to fraction form
    40,172.64/60,262.20 = 13,877.61/x
  3. Step 3: Cross multiply
    40,172.64x = 60,262.20 × 13,877.61
  4. Step 4: Simplify right side
    40,172.64x = 836,295,309.34
  5. Step 5: Solve for x
    x = 836,295,309.34/40,172.64
  6. Step 6: Final answer
    x = 20,817.53

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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.