Home / 27,660.56-38,171.52-15,085.28

Finding the Fourth Proportional to 27,660.56, 38,171.52 and 15,085.28

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Solution

The fourth proportional to 27,660.56, 38,171.52 and 15,085.28 is: 20,817.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,660.56 : 38,171.52 = 15,085.28 : x
  2. Step 2: Convert to fraction form
    27,660.56/38,171.52 = 15,085.28/x
  3. Step 3: Cross multiply
    27,660.56x = 38,171.52 × 15,085.28
  4. Step 4: Simplify right side
    27,660.56x = 575,828,067.23
  5. Step 5: Solve for x
    x = 575,828,067.23/27,660.56
  6. Step 6: Final answer
    x = 20,817.66

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Double scale
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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.