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Finding the Fourth Proportional to 29,162.70, 43,718.40 and 17,287.20

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Solution

The fourth proportional to 29,162.70, 43,718.40 and 17,287.20 is: 25,915.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,162.70 : 43,718.40 = 17,287.20 : x
  2. Step 2: Convert to fraction form
    29,162.70/43,718.40 = 17,287.20/x
  3. Step 3: Cross multiply
    29,162.70x = 43,718.40 × 17,287.20
  4. Step 4: Simplify right side
    29,162.70x = 755,768,724.48
  5. Step 5: Solve for x
    x = 755,768,724.48/29,162.70
  6. Step 6: Final answer
    x = 25,915.60

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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.