Home / 36,811.78-50,801.82-20,897.71

Finding the Fourth Proportional to 36,811.78, 50,801.82 and 20,897.71

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Solution

The fourth proportional to 36,811.78, 50,801.82 and 20,897.71 is: 28,839.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,811.78 : 50,801.82 = 20,897.71 : x
  2. Step 2: Convert to fraction form
    36,811.78/50,801.82 = 20,897.71/x
  3. Step 3: Cross multiply
    36,811.78x = 50,801.82 × 20,897.71
  4. Step 4: Simplify right side
    36,811.78x = 1,061,641,701.83
  5. Step 5: Solve for x
    x = 1,061,641,701.83/36,811.78
  6. Step 6: Final answer
    x = 28,839.73

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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.