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Finding the Fourth Proportional to 17,421.60, 26,132.40 and 14,797.20

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Solution

The fourth proportional to 17,421.60, 26,132.40 and 14,797.20 is: 22,195.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,421.60 : 26,132.40 = 14,797.20 : x
  2. Step 2: Convert to fraction form
    17,421.60/26,132.40 = 14,797.20/x
  3. Step 3: Cross multiply
    17,421.60x = 26,132.40 × 14,797.20
  4. Step 4: Simplify right side
    17,421.60x = 386,686,349.28
  5. Step 5: Solve for x
    x = 386,686,349.28/17,421.60
  6. Step 6: Final answer
    x = 22,195.80

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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.