Home / 20,844.27-31,266.50-5,261.90

Finding the Fourth Proportional to 20,844.27, 31,266.50 and 5,261.90

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Solution

The fourth proportional to 20,844.27, 31,266.50 and 5,261.90 is: 7,892.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.27 : 31,266.50 = 5,261.90 : x
  2. Step 2: Convert to fraction form
    20,844.27/31,266.50 = 5,261.90/x
  3. Step 3: Cross multiply
    20,844.27x = 31,266.50 × 5,261.90
  4. Step 4: Simplify right side
    20,844.27x = 164,521,013.71
  5. Step 5: Solve for x
    x = 164,521,013.71/20,844.27
  6. Step 6: Final answer
    x = 7,892.87

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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.