Home / 27,867.53-38,456.02-15,291.47

Finding the Fourth Proportional to 27,867.53, 38,456.02 and 15,291.47

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Solution

The fourth proportional to 27,867.53, 38,456.02 and 15,291.47 is: 21,101.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,867.53 : 38,456.02 = 15,291.47 : x
  2. Step 2: Convert to fraction form
    27,867.53/38,456.02 = 15,291.47/x
  3. Step 3: Cross multiply
    27,867.53x = 38,456.02 × 15,291.47
  4. Step 4: Simplify right side
    27,867.53x = 588,049,076.15
  5. Step 5: Solve for x
    x = 588,049,076.15/27,867.53
  6. Step 6: Final answer
    x = 21,101.59

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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.