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Finding the Fourth Proportional to 17,053.28, 23,531.86 and 9,978.32

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Solution

The fourth proportional to 17,053.28, 23,531.86 and 9,978.32 is: 13,769.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,053.28 : 23,531.86 = 9,978.32 : x
  2. Step 2: Convert to fraction form
    17,053.28/23,531.86 = 9,978.32/x
  3. Step 3: Cross multiply
    17,053.28x = 23,531.86 × 9,978.32
  4. Step 4: Simplify right side
    17,053.28x = 234,808,429.28
  5. Step 5: Solve for x
    x = 234,808,429.28/17,053.28
  6. Step 6: Final answer
    x = 13,769.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.