Home / 27,642.12-38,151.56-19,253.76

Finding the Fourth Proportional to 27,642.12, 38,151.56 and 19,253.76

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Solution

The fourth proportional to 27,642.12, 38,151.56 and 19,253.76 is: 26,573.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,642.12 : 38,151.56 = 19,253.76 : x
  2. Step 2: Convert to fraction form
    27,642.12/38,151.56 = 19,253.76/x
  3. Step 3: Cross multiply
    27,642.12x = 38,151.56 × 19,253.76
  4. Step 4: Simplify right side
    27,642.12x = 734,560,979.87
  5. Step 5: Solve for x
    x = 734,560,979.87/27,642.12
  6. Step 6: Final answer
    x = 26,573.97

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Half 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.