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Finding the Fourth Proportional to 17,425.80, 26,187.30 and 15,287.40

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Solution

The fourth proportional to 17,425.80, 26,187.30 and 15,287.40 is: 22,973.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,425.80 : 26,187.30 = 15,287.40 : x
  2. Step 2: Convert to fraction form
    17,425.80/26,187.30 = 15,287.40/x
  3. Step 3: Cross multiply
    17,425.80x = 26,187.30 × 15,287.40
  4. Step 4: Simplify right side
    17,425.80x = 400,335,730.02
  5. Step 5: Solve for x
    x = 400,335,730.02/17,425.80
  6. Step 6: Final answer
    x = 22,973.74

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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.