Home / 36,731.08-50,687.85-20,820.66

Finding the Fourth Proportional to 36,731.08, 50,687.85 and 20,820.66

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Solution

The fourth proportional to 36,731.08, 50,687.85 and 20,820.66 is: 28,731.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,731.08 : 50,687.85 = 20,820.66 : x
  2. Step 2: Convert to fraction form
    36,731.08/50,687.85 = 20,820.66/x
  3. Step 3: Cross multiply
    36,731.08x = 50,687.85 × 20,820.66
  4. Step 4: Simplify right side
    36,731.08x = 1,055,354,490.98
  5. Step 5: Solve for x
    x = 1,055,354,490.98/36,731.08
  6. Step 6: Final answer
    x = 28,731.92

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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.