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Finding the Fourth Proportional to 29,235.60, 43,853.40 and 8,461.20

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Solution

The fourth proportional to 29,235.60, 43,853.40 and 8,461.20 is: 12,691.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,235.60 : 43,853.40 = 8,461.20 : x
  2. Step 2: Convert to fraction form
    29,235.60/43,853.40 = 8,461.20/x
  3. Step 3: Cross multiply
    29,235.60x = 43,853.40 × 8,461.20
  4. Step 4: Simplify right side
    29,235.60x = 371,052,388.08
  5. Step 5: Solve for x
    x = 371,052,388.08/29,235.60
  6. Step 6: Final answer
    x = 12,691.80

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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.