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Finding the Fourth Proportional to 17,812.80, 26,735.40 and 15,350.40

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Solution

The fourth proportional to 17,812.80, 26,735.40 and 15,350.40 is: 23,039.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,812.80 : 26,735.40 = 15,350.40 : x
  2. Step 2: Convert to fraction form
    17,812.80/26,735.40 = 15,350.40/x
  3. Step 3: Cross multiply
    17,812.80x = 26,735.40 × 15,350.40
  4. Step 4: Simplify right side
    17,812.80x = 410,399,084.16
  5. Step 5: Solve for x
    x = 410,399,084.16/17,812.80
  6. Step 6: Final answer
    x = 23,039.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.