Home / 36,821.52-50,808.16-20,685.75

Finding the Fourth Proportional to 36,821.52, 50,808.16 and 20,685.75

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Solution

The fourth proportional to 36,821.52, 50,808.16 and 20,685.75 is: 28,543.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,821.52 : 50,808.16 = 20,685.75 : x
  2. Step 2: Convert to fraction form
    36,821.52/50,808.16 = 20,685.75/x
  3. Step 3: Cross multiply
    36,821.52x = 50,808.16 × 20,685.75
  4. Step 4: Simplify right side
    36,821.52x = 1,051,004,731.05
  5. Step 5: Solve for x
    x = 1,051,004,731.05/36,821.52
  6. Step 6: Final answer
    x = 28,543.22

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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.