Home / 27,877.31-38,461.26-15,932.14

Finding the Fourth Proportional to 27,877.31, 38,461.26 and 15,932.14

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Solution

The fourth proportional to 27,877.31, 38,461.26 and 15,932.14 is: 21,980.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,877.31 : 38,461.26 = 15,932.14 : x
  2. Step 2: Convert to fraction form
    27,877.31/38,461.26 = 15,932.14/x
  3. Step 3: Cross multiply
    27,877.31x = 38,461.26 × 15,932.14
  4. Step 4: Simplify right side
    27,877.31x = 612,770,142.49
  5. Step 5: Solve for x
    x = 612,770,142.49/27,877.31
  6. Step 6: Final answer
    x = 21,980.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.