Home / 27,916.40-38,524.20-15,340.88

Finding the Fourth Proportional to 27,916.40, 38,524.20 and 15,340.88

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Solution

The fourth proportional to 27,916.40, 38,524.20 and 15,340.88 is: 21,170.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,916.40 : 38,524.20 = 15,340.88 : x
  2. Step 2: Convert to fraction form
    27,916.40/38,524.20 = 15,340.88/x
  3. Step 3: Cross multiply
    27,916.40x = 38,524.20 × 15,340.88
  4. Step 4: Simplify right side
    27,916.40x = 590,995,052.59
  5. Step 5: Solve for x
    x = 590,995,052.59/27,916.40
  6. Step 6: Final answer
    x = 21,170.17

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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.