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Finding the Fourth Proportional to 40,368.80, 60,562.80 and 16,983.20

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Solution

The fourth proportional to 40,368.80, 60,562.80 and 16,983.20 is: 25,478.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,368.80 : 60,562.80 = 16,983.20 : x
  2. Step 2: Convert to fraction form
    40,368.80/60,562.80 = 16,983.20/x
  3. Step 3: Cross multiply
    40,368.80x = 60,562.80 × 16,983.20
  4. Step 4: Simplify right side
    40,368.80x = 1,028,550,144.96
  5. Step 5: Solve for x
    x = 1,028,550,144.96/40,368.80
  6. Step 6: Final answer
    x = 25,478.84

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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.