Home / 27,949.92-38,590.64-18,538.08

Finding the Fourth Proportional to 27,949.92, 38,590.64 and 18,538.08

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Solution

The fourth proportional to 27,949.92, 38,590.64 and 18,538.08 is: 25,595.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,949.92 : 38,590.64 = 18,538.08 : x
  2. Step 2: Convert to fraction form
    27,949.92/38,590.64 = 18,538.08/x
  3. Step 3: Cross multiply
    27,949.92x = 38,590.64 × 18,538.08
  4. Step 4: Simplify right side
    27,949.92x = 715,396,371.57
  5. Step 5: Solve for x
    x = 715,396,371.57/27,949.92
  6. Step 6: Final answer
    x = 25,595.65

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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.