Home / 27,738.50-38,279.13-15,163.34

Finding the Fourth Proportional to 27,738.50, 38,279.13 and 15,163.34

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Solution

The fourth proportional to 27,738.50, 38,279.13 and 15,163.34 is: 20,925.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,738.50 : 38,279.13 = 15,163.34 : x
  2. Step 2: Convert to fraction form
    27,738.50/38,279.13 = 15,163.34/x
  3. Step 3: Cross multiply
    27,738.50x = 38,279.13 × 15,163.34
  4. Step 4: Simplify right side
    27,738.50x = 580,439,463.09
  5. Step 5: Solve for x
    x = 580,439,463.09/27,738.50
  6. Step 6: Final answer
    x = 20,925.41

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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.