Home / 36,221.60-49,985.77-20,306.05

Finding the Fourth Proportional to 36,221.60, 49,985.77 and 20,306.05

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Solution

The fourth proportional to 36,221.60, 49,985.77 and 20,306.05 is: 28,022.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,221.60 : 49,985.77 = 20,306.05 : x
  2. Step 2: Convert to fraction form
    36,221.60/49,985.77 = 20,306.05/x
  3. Step 3: Cross multiply
    36,221.60x = 49,985.77 × 20,306.05
  4. Step 4: Simplify right side
    36,221.60x = 1,015,013,369.18
  5. Step 5: Solve for x
    x = 1,015,013,369.18/36,221.60
  6. Step 6: Final answer
    x = 28,022.33

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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.