Home / 38,440.95-57,661.80-13,481.61

Finding the Fourth Proportional to 38,440.95, 57,661.80 and 13,481.61

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Solution

The fourth proportional to 38,440.95, 57,661.80 and 13,481.61 is: 20,222.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,440.95 : 57,661.80 = 13,481.61 : x
  2. Step 2: Convert to fraction form
    38,440.95/57,661.80 = 13,481.61/x
  3. Step 3: Cross multiply
    38,440.95x = 57,661.80 × 13,481.61
  4. Step 4: Simplify right side
    38,440.95x = 777,373,899.50
  5. Step 5: Solve for x
    x = 777,373,899.50/38,440.95
  6. Step 6: Final answer
    x = 20,222.55

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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.