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Finding the Fourth Proportional to 29,005.60, 43,515.60 and 8,229.04

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Solution

The fourth proportional to 29,005.60, 43,515.60 and 8,229.04 is: 12,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,005.60 : 43,515.60 = 8,229.04 : x
  2. Step 2: Convert to fraction form
    29,005.60/43,515.60 = 8,229.04/x
  3. Step 3: Cross multiply
    29,005.60x = 43,515.60 × 8,229.04
  4. Step 4: Simplify right side
    29,005.60x = 358,091,613.02
  5. Step 5: Solve for x
    x = 358,091,613.02/29,005.60
  6. Step 6: Final answer
    x = 12,345.60

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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.