Home / 27,823.15-38,397.82-15,719.43

Finding the Fourth Proportional to 27,823.15, 38,397.82 and 15,719.43

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Solution

The fourth proportional to 27,823.15, 38,397.82 and 15,719.43 is: 21,693.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,823.15 : 38,397.82 = 15,719.43 : x
  2. Step 2: Convert to fraction form
    27,823.15/38,397.82 = 15,719.43/x
  3. Step 3: Cross multiply
    27,823.15x = 38,397.82 × 15,719.43
  4. Step 4: Simplify right side
    27,823.15x = 603,591,860.03
  5. Step 5: Solve for x
    x = 603,591,860.03/27,823.15
  6. Step 6: Final answer
    x = 21,693.88

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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.