Home / 53,428.38-80,142.42-15,988.44

Finding the Fourth Proportional to 53,428.38, 80,142.42 and 15,988.44

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Solution

The fourth proportional to 53,428.38, 80,142.42 and 15,988.44 is: 23,982.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,428.38 : 80,142.42 = 15,988.44 : x
  2. Step 2: Convert to fraction form
    53,428.38/80,142.42 = 15,988.44/x
  3. Step 3: Cross multiply
    53,428.38x = 80,142.42 × 15,988.44
  4. Step 4: Simplify right side
    53,428.38x = 1,281,352,273.62
  5. Step 5: Solve for x
    x = 1,281,352,273.62/53,428.38
  6. Step 6: Final answer
    x = 23,982.62

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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.