Home / 27,945.46-38,565-15,198.77

Finding the Fourth Proportional to 27,945.46, 38,565 and 15,198.77

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Solution

The fourth proportional to 27,945.46, 38,565 and 15,198.77 is: 20,974.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,945.46 : 38,565 = 15,198.77 : x
  2. Step 2: Convert to fraction form
    27,945.46/38,565 = 15,198.77/x
  3. Step 3: Cross multiply
    27,945.46x = 38,565 × 15,198.77
  4. Step 4: Simplify right side
    27,945.46x = 586,140,565.05
  5. Step 5: Solve for x
    x = 586,140,565.05/27,945.46
  6. Step 6: Final answer
    x = 20,974.45

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Half scale
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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.