Home / 27,660.39-38,171.42-15,085.14

Finding the Fourth Proportional to 27,660.39, 38,171.42 and 15,085.14

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Solution

The fourth proportional to 27,660.39, 38,171.42 and 15,085.14 is: 20,817.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,660.39 : 38,171.42 = 15,085.14 : x
  2. Step 2: Convert to fraction form
    27,660.39/38,171.42 = 15,085.14/x
  3. Step 3: Cross multiply
    27,660.39x = 38,171.42 × 15,085.14
  4. Step 4: Simplify right side
    27,660.39x = 575,821,214.70
  5. Step 5: Solve for x
    x = 575,821,214.70/27,660.39
  6. Step 6: Final answer
    x = 20,817.54

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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.