Home / 27,610.66-38,111.31-15,681.94

Finding the Fourth Proportional to 27,610.66, 38,111.31 and 15,681.94

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Solution

The fourth proportional to 27,610.66, 38,111.31 and 15,681.94 is: 21,645.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,610.66 : 38,111.31 = 15,681.94 : x
  2. Step 2: Convert to fraction form
    27,610.66/38,111.31 = 15,681.94/x
  3. Step 3: Cross multiply
    27,610.66x = 38,111.31 × 15,681.94
  4. Step 4: Simplify right side
    27,610.66x = 597,659,276.74
  5. Step 5: Solve for x
    x = 597,659,276.74/27,610.66
  6. Step 6: Final answer
    x = 21,645.96

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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.