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Finding the Fourth Proportional to 29,586.80, 40,819.80 and 18,244.40

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Solution

The fourth proportional to 29,586.80, 40,819.80 and 18,244.40 is: 25,171.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,586.80 : 40,819.80 = 18,244.40 : x
  2. Step 2: Convert to fraction form
    29,586.80/40,819.80 = 18,244.40/x
  3. Step 3: Cross multiply
    29,586.80x = 40,819.80 × 18,244.40
  4. Step 4: Simplify right side
    29,586.80x = 744,732,759.12
  5. Step 5: Solve for x
    x = 744,732,759.12/29,586.80
  6. Step 6: Final answer
    x = 25,171.12

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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.