Home / 27,738.76-38,278.68-15,163.52

Finding the Fourth Proportional to 27,738.76, 38,278.68 and 15,163.52

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Solution

The fourth proportional to 27,738.76, 38,278.68 and 15,163.52 is: 20,925.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,738.76 : 38,278.68 = 15,163.52 : x
  2. Step 2: Convert to fraction form
    27,738.76/38,278.68 = 15,163.52/x
  3. Step 3: Cross multiply
    27,738.76x = 38,278.68 × 15,163.52
  4. Step 4: Simplify right side
    27,738.76x = 580,439,529.75
  5. Step 5: Solve for x
    x = 580,439,529.75/27,738.76
  6. Step 6: Final answer
    x = 20,925.22

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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.