Home / 36,890.12-50,908.50-20,979.80

Finding the Fourth Proportional to 36,890.12, 50,908.50 and 20,979.80

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Solution

The fourth proportional to 36,890.12, 50,908.50 and 20,979.80 is: 28,952.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,890.12 : 50,908.50 = 20,979.80 : x
  2. Step 2: Convert to fraction form
    36,890.12/50,908.50 = 20,979.80/x
  3. Step 3: Cross multiply
    36,890.12x = 50,908.50 × 20,979.80
  4. Step 4: Simplify right side
    36,890.12x = 1,068,050,148.30
  5. Step 5: Solve for x
    x = 1,068,050,148.30/36,890.12
  6. Step 6: Final answer
    x = 28,952.20

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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.