Home / 21,266.38-31,903.08-6,471.91

Finding the Fourth Proportional to 21,266.38, 31,903.08 and 6,471.91

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Solution

The fourth proportional to 21,266.38, 31,903.08 and 6,471.91 is: 9,708.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,266.38 : 31,903.08 = 6,471.91 : x
  2. Step 2: Convert to fraction form
    21,266.38/31,903.08 = 6,471.91/x
  3. Step 3: Cross multiply
    21,266.38x = 31,903.08 × 6,471.91
  4. Step 4: Simplify right side
    21,266.38x = 206,473,862.48
  5. Step 5: Solve for x
    x = 206,473,862.48/21,266.38
  6. Step 6: Final answer
    x = 9,708.93

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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.