Home / 27,911.60-38,517.72-15,164.51

Finding the Fourth Proportional to 27,911.60, 38,517.72 and 15,164.51

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Solution

The fourth proportional to 27,911.60, 38,517.72 and 15,164.51 is: 20,926.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,911.60 : 38,517.72 = 15,164.51 : x
  2. Step 2: Convert to fraction form
    27,911.60/38,517.72 = 15,164.51/x
  3. Step 3: Cross multiply
    27,911.60x = 38,517.72 × 15,164.51
  4. Step 4: Simplify right side
    27,911.60x = 584,102,350.12
  5. Step 5: Solve for x
    x = 584,102,350.12/27,911.60
  6. Step 6: Final answer
    x = 20,926.87

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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.