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Finding the Fourth Proportional to 39,280, 54,197.42 and 22,280.18

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Solution

The fourth proportional to 39,280, 54,197.42 and 22,280.18 is: 30,741.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,280 : 54,197.42 = 22,280.18 : x
  2. Step 2: Convert to fraction form
    39,280/54,197.42 = 22,280.18/x
  3. Step 3: Cross multiply
    39,280x = 54,197.42 × 22,280.18
  4. Step 4: Simplify right side
    39,280x = 1,207,528,273.14
  5. Step 5: Solve for x
    x = 1,207,528,273.14/39,280
  6. Step 6: Final answer
    x = 30,741.55

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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.