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Finding the Fourth Proportional to 40,238.80, 60,358.20 and 29,870.80

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Solution

The fourth proportional to 40,238.80, 60,358.20 and 29,870.80 is: 44,806.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,238.80 : 60,358.20 = 29,870.80 : x
  2. Step 2: Convert to fraction form
    40,238.80/60,358.20 = 29,870.80/x
  3. Step 3: Cross multiply
    40,238.80x = 60,358.20 × 29,870.80
  4. Step 4: Simplify right side
    40,238.80x = 1,802,947,720.56
  5. Step 5: Solve for x
    x = 1,802,947,720.56/40,238.80
  6. Step 6: Final answer
    x = 44,806.20

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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.