Home / 38,122.88-57,170.28-13,156.56

Finding the Fourth Proportional to 38,122.88, 57,170.28 and 13,156.56

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Solution

The fourth proportional to 38,122.88, 57,170.28 and 13,156.56 is: 19,729.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,122.88 : 57,170.28 = 13,156.56 : x
  2. Step 2: Convert to fraction form
    38,122.88/57,170.28 = 13,156.56/x
  3. Step 3: Cross multiply
    38,122.88x = 57,170.28 × 13,156.56
  4. Step 4: Simplify right side
    38,122.88x = 752,164,219.04
  5. Step 5: Solve for x
    x = 752,164,219.04/38,122.88
  6. Step 6: Final answer
    x = 19,729.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.