Home / 36,122.15-49,838.20-20,805.86

Finding the Fourth Proportional to 36,122.15, 49,838.20 and 20,805.86

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Solution

The fourth proportional to 36,122.15, 49,838.20 and 20,805.86 is: 28,706.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,122.15 : 49,838.20 = 20,805.86 : x
  2. Step 2: Convert to fraction form
    36,122.15/49,838.20 = 20,805.86/x
  3. Step 3: Cross multiply
    36,122.15x = 49,838.20 × 20,805.86
  4. Step 4: Simplify right side
    36,122.15x = 1,036,926,684.43
  5. Step 5: Solve for x
    x = 1,036,926,684.43/36,122.15
  6. Step 6: Final answer
    x = 28,706.12

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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.