Home / 21,264.88-31,897.30-7,226.38

Finding the Fourth Proportional to 21,264.88, 31,897.30 and 7,226.38

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Solution

The fourth proportional to 21,264.88, 31,897.30 and 7,226.38 is: 10,839.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,264.88 : 31,897.30 = 7,226.38 : x
  2. Step 2: Convert to fraction form
    21,264.88/31,897.30 = 7,226.38/x
  3. Step 3: Cross multiply
    21,264.88x = 31,897.30 × 7,226.38
  4. Step 4: Simplify right side
    21,264.88x = 230,502,010.77
  5. Step 5: Solve for x
    x = 230,502,010.77/21,264.88
  6. Step 6: Final answer
    x = 10,839.56

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1.5x scale

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.