Home / 36,192.96-49,951.22-20,280.78

Finding the Fourth Proportional to 36,192.96, 49,951.22 and 20,280.78

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Solution

The fourth proportional to 36,192.96, 49,951.22 and 20,280.78 is: 27,990.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,192.96 : 49,951.22 = 20,280.78 : x
  2. Step 2: Convert to fraction form
    36,192.96/49,951.22 = 20,280.78/x
  3. Step 3: Cross multiply
    36,192.96x = 49,951.22 × 20,280.78
  4. Step 4: Simplify right side
    36,192.96x = 1,013,049,602.15
  5. Step 5: Solve for x
    x = 1,013,049,602.15/36,192.96
  6. Step 6: Final answer
    x = 27,990.24

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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.