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Finding the Fourth Proportional to 40,230.28, 60,347.04 and 19,159.48

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Solution

The fourth proportional to 40,230.28, 60,347.04 and 19,159.48 is: 28,739.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,230.28 : 60,347.04 = 19,159.48 : x
  2. Step 2: Convert to fraction form
    40,230.28/60,347.04 = 19,159.48/x
  3. Step 3: Cross multiply
    40,230.28x = 60,347.04 × 19,159.48
  4. Step 4: Simplify right side
    40,230.28x = 1,156,217,905.94
  5. Step 5: Solve for x
    x = 1,156,217,905.94/40,230.28
  6. Step 6: Final answer
    x = 28,739.99

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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.