Home / 18,540.38-25,585.57-10,042.30

Finding the Fourth Proportional to 18,540.38, 25,585.57 and 10,042.30

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Solution

The fourth proportional to 18,540.38, 25,585.57 and 10,042.30 is: 13,858.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.38 : 25,585.57 = 10,042.30 : x
  2. Step 2: Convert to fraction form
    18,540.38/25,585.57 = 10,042.30/x
  3. Step 3: Cross multiply
    18,540.38x = 25,585.57 × 10,042.30
  4. Step 4: Simplify right side
    18,540.38x = 256,937,969.61
  5. Step 5: Solve for x
    x = 256,937,969.61/18,540.38
  6. Step 6: Final answer
    x = 13,858.29

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1.5x scale

Why These Related Problems?

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