Home / 38,079.87-52,550.87-20,853.75

Finding the Fourth Proportional to 38,079.87, 52,550.87 and 20,853.75

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Solution

The fourth proportional to 38,079.87, 52,550.87 and 20,853.75 is: 28,778.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,079.87 : 52,550.87 = 20,853.75 : x
  2. Step 2: Convert to fraction form
    38,079.87/52,550.87 = 20,853.75/x
  3. Step 3: Cross multiply
    38,079.87x = 52,550.87 × 20,853.75
  4. Step 4: Simplify right side
    38,079.87x = 1,095,882,705.26
  5. Step 5: Solve for x
    x = 1,095,882,705.26/38,079.87
  6. Step 6: Final answer
    x = 28,778.53

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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.