Home / 20,837.13-31,254.59-5,845.28

Finding the Fourth Proportional to 20,837.13, 31,254.59 and 5,845.28

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Solution

The fourth proportional to 20,837.13, 31,254.59 and 5,845.28 is: 8,767.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,837.13 : 31,254.59 = 5,845.28 : x
  2. Step 2: Convert to fraction form
    20,837.13/31,254.59 = 5,845.28/x
  3. Step 3: Cross multiply
    20,837.13x = 31,254.59 × 5,845.28
  4. Step 4: Simplify right side
    20,837.13x = 182,691,957.78
  5. Step 5: Solve for x
    x = 182,691,957.78/20,837.13
  6. Step 6: Final answer
    x = 8,767.62

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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.