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Finding the Fourth Proportional to 13,570.28, 20,350.52 and 10,654.28

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Solution

The fourth proportional to 13,570.28, 20,350.52 and 10,654.28 is: 15,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,570.28 : 20,350.52 = 10,654.28 : x
  2. Step 2: Convert to fraction form
    13,570.28/20,350.52 = 10,654.28/x
  3. Step 3: Cross multiply
    13,570.28x = 20,350.52 × 10,654.28
  4. Step 4: Simplify right side
    13,570.28x = 216,820,138.23
  5. Step 5: Solve for x
    x = 216,820,138.23/13,570.28
  6. Step 6: Final answer
    x = 15,977.57

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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.