Home / 27,357.31-41,035.98-21,126.43

Finding the Fourth Proportional to 27,357.31, 41,035.98 and 21,126.43

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Solution

The fourth proportional to 27,357.31, 41,035.98 and 21,126.43 is: 31,689.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,357.31 : 41,035.98 = 21,126.43 : x
  2. Step 2: Convert to fraction form
    27,357.31/41,035.98 = 21,126.43/x
  3. Step 3: Cross multiply
    27,357.31x = 41,035.98 × 21,126.43
  4. Step 4: Simplify right side
    27,357.31x = 866,943,758.95
  5. Step 5: Solve for x
    x = 866,943,758.95/27,357.31
  6. Step 6: Final answer
    x = 31,689.66

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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.