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Finding the Fourth Proportional to 29,487.80, 40,650.18 and 22,401.92

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Solution

The fourth proportional to 29,487.80, 40,650.18 and 22,401.92 is: 30,881.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,487.80 : 40,650.18 = 22,401.92 : x
  2. Step 2: Convert to fraction form
    29,487.80/40,650.18 = 22,401.92/x
  3. Step 3: Cross multiply
    29,487.80x = 40,650.18 × 22,401.92
  4. Step 4: Simplify right side
    29,487.80x = 910,642,080.35
  5. Step 5: Solve for x
    x = 910,642,080.35/29,487.80
  6. Step 6: Final answer
    x = 30,881.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.