Home / 20,844.29-31,266.59-5,261.92

Finding the Fourth Proportional to 20,844.29, 31,266.59 and 5,261.92

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Solution

The fourth proportional to 20,844.29, 31,266.59 and 5,261.92 is: 7,892.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.29 : 31,266.59 = 5,261.92 : x
  2. Step 2: Convert to fraction form
    20,844.29/31,266.59 = 5,261.92/x
  3. Step 3: Cross multiply
    20,844.29x = 31,266.59 × 5,261.92
  4. Step 4: Simplify right side
    20,844.29x = 164,522,190.78
  5. Step 5: Solve for x
    x = 164,522,190.78/20,844.29
  6. Step 6: Final answer
    x = 7,892.91

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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.