Home / 27,847.67-38,426.24-15,911.78

Finding the Fourth Proportional to 27,847.67, 38,426.24 and 15,911.78

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Solution

The fourth proportional to 27,847.67, 38,426.24 and 15,911.78 is: 21,956.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.67 : 38,426.24 = 15,911.78 : x
  2. Step 2: Convert to fraction form
    27,847.67/38,426.24 = 15,911.78/x
  3. Step 3: Cross multiply
    27,847.67x = 38,426.24 × 15,911.78
  4. Step 4: Simplify right side
    27,847.67x = 611,429,868.85
  5. Step 5: Solve for x
    x = 611,429,868.85/27,847.67
  6. Step 6: Final answer
    x = 21,956.23

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Half scale
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Double scale
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Similar ratio
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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.