Home / 27,356.31-41,034.48-21,125.43

Finding the Fourth Proportional to 27,356.31, 41,034.48 and 21,125.43

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Solution

The fourth proportional to 27,356.31, 41,034.48 and 21,125.43 is: 31,688.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,356.31 : 41,034.48 = 21,125.43 : x
  2. Step 2: Convert to fraction form
    27,356.31/41,034.48 = 21,125.43/x
  3. Step 3: Cross multiply
    27,356.31x = 41,034.48 × 21,125.43
  4. Step 4: Simplify right side
    27,356.31x = 866,870,929.20
  5. Step 5: Solve for x
    x = 866,870,929.20/27,356.31
  6. Step 6: Final answer
    x = 31,688.15

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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.