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Finding the Fourth Proportional to 40,372.20, 60,550.20 and 19,312.20

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Solution

The fourth proportional to 40,372.20, 60,550.20 and 19,312.20 is: 28,964.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,372.20 : 60,550.20 = 19,312.20 : x
  2. Step 2: Convert to fraction form
    40,372.20/60,550.20 = 19,312.20/x
  3. Step 3: Cross multiply
    40,372.20x = 60,550.20 × 19,312.20
  4. Step 4: Simplify right side
    40,372.20x = 1,169,357,572.44
  5. Step 5: Solve for x
    x = 1,169,357,572.44/40,372.20
  6. Step 6: Final answer
    x = 28,964.43

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1.5x scale

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.