Home / 36,139.86-49,863.53-20,822.66

Finding the Fourth Proportional to 36,139.86, 49,863.53 and 20,822.66

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Solution

The fourth proportional to 36,139.86, 49,863.53 and 20,822.66 is: 28,729.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,139.86 : 49,863.53 = 20,822.66 : x
  2. Step 2: Convert to fraction form
    36,139.86/49,863.53 = 20,822.66/x
  3. Step 3: Cross multiply
    36,139.86x = 49,863.53 × 20,822.66
  4. Step 4: Simplify right side
    36,139.86x = 1,038,290,978.16
  5. Step 5: Solve for x
    x = 1,038,290,978.16/36,139.86
  6. Step 6: Final answer
    x = 28,729.80

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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.