Home / 36,909.13-50,937.33-20,998.70

Finding the Fourth Proportional to 36,909.13, 50,937.33 and 20,998.70

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Solution

The fourth proportional to 36,909.13, 50,937.33 and 20,998.70 is: 28,979.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,909.13 : 50,937.33 = 20,998.70 : x
  2. Step 2: Convert to fraction form
    36,909.13/50,937.33 = 20,998.70/x
  3. Step 3: Cross multiply
    36,909.13x = 50,937.33 × 20,998.70
  4. Step 4: Simplify right side
    36,909.13x = 1,069,617,711.47
  5. Step 5: Solve for x
    x = 1,069,617,711.47/36,909.13
  6. Step 6: Final answer
    x = 28,979.76

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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.