Home / 40,187.76-60,262.20-13,883.28

Finding the Fourth Proportional to 40,187.76, 60,262.20 and 13,883.28

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Solution

The fourth proportional to 40,187.76, 60,262.20 and 13,883.28 is: 20,818.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,187.76 : 60,262.20 = 13,883.28 : x
  2. Step 2: Convert to fraction form
    40,187.76/60,262.20 = 13,883.28/x
  3. Step 3: Cross multiply
    40,187.76x = 60,262.20 × 13,883.28
  4. Step 4: Simplify right side
    40,187.76x = 836,636,996.02
  5. Step 5: Solve for x
    x = 836,636,996.02/40,187.76
  6. Step 6: Final answer
    x = 20,818.20

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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.