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Finding the Fourth Proportional to 29,983.20, 44,938.80 and 20,623.20

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Solution

The fourth proportional to 29,983.20, 44,938.80 and 20,623.20 is: 30,910.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,983.20 : 44,938.80 = 20,623.20 : x
  2. Step 2: Convert to fraction form
    29,983.20/44,938.80 = 20,623.20/x
  3. Step 3: Cross multiply
    29,983.20x = 44,938.80 × 20,623.20
  4. Step 4: Simplify right side
    29,983.20x = 926,781,860.16
  5. Step 5: Solve for x
    x = 926,781,860.16/29,983.20
  6. Step 6: Final answer
    x = 30,910.04

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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.