Home / 36,920.16-55,378.08-19,378.80

Finding the Fourth Proportional to 36,920.16, 55,378.08 and 19,378.80

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Solution

The fourth proportional to 36,920.16, 55,378.08 and 19,378.80 is: 29,067.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,920.16 : 55,378.08 = 19,378.80 : x
  2. Step 2: Convert to fraction form
    36,920.16/55,378.08 = 19,378.80/x
  3. Step 3: Cross multiply
    36,920.16x = 55,378.08 × 19,378.80
  4. Step 4: Simplify right side
    36,920.16x = 1,073,160,736.70
  5. Step 5: Solve for x
    x = 1,073,160,736.70/36,920.16
  6. Step 6: Final answer
    x = 29,067.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.