Home / 27,654.75-38,166.83-15,719.88

Finding the Fourth Proportional to 27,654.75, 38,166.83 and 15,719.88

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Solution

The fourth proportional to 27,654.75, 38,166.83 and 15,719.88 is: 21,695.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,654.75 : 38,166.83 = 15,719.88 : x
  2. Step 2: Convert to fraction form
    27,654.75/38,166.83 = 15,719.88/x
  3. Step 3: Cross multiply
    27,654.75x = 38,166.83 × 15,719.88
  4. Step 4: Simplify right side
    27,654.75x = 599,977,842.70
  5. Step 5: Solve for x
    x = 599,977,842.70/27,654.75
  6. Step 6: Final answer
    x = 21,695.29

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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.