Home / 27,654.57-38,162.07-15,719.00

Finding the Fourth Proportional to 27,654.57, 38,162.07 and 15,719.00

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Solution

The fourth proportional to 27,654.57, 38,162.07 and 15,719.00 is: 21,691.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,654.57 : 38,162.07 = 15,719.00 : x
  2. Step 2: Convert to fraction form
    27,654.57/38,162.07 = 15,719.00/x
  3. Step 3: Cross multiply
    27,654.57x = 38,162.07 × 15,719.00
  4. Step 4: Simplify right side
    27,654.57x = 599,869,387.52
  5. Step 5: Solve for x
    x = 599,869,387.52/27,654.57
  6. Step 6: Final answer
    x = 21,691.51

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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.