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Finding the Fourth Proportional to 29,281.20, 43,921.80 and 17,588.40

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Solution

The fourth proportional to 29,281.20, 43,921.80 and 17,588.40 is: 26,382.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,281.20 : 43,921.80 = 17,588.40 : x
  2. Step 2: Convert to fraction form
    29,281.20/43,921.80 = 17,588.40/x
  3. Step 3: Cross multiply
    29,281.20x = 43,921.80 × 17,588.40
  4. Step 4: Simplify right side
    29,281.20x = 772,514,187.12
  5. Step 5: Solve for x
    x = 772,514,187.12/29,281.20
  6. Step 6: Final answer
    x = 26,382.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.