Home / 18,559.38-27,838.71-4,519.20

Finding the Fourth Proportional to 18,559.38, 27,838.71 and 4,519.20

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Solution

The fourth proportional to 18,559.38, 27,838.71 and 4,519.20 is: 6,778.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,559.38 : 27,838.71 = 4,519.20 : x
  2. Step 2: Convert to fraction form
    18,559.38/27,838.71 = 4,519.20/x
  3. Step 3: Cross multiply
    18,559.38x = 27,838.71 × 4,519.20
  4. Step 4: Simplify right side
    18,559.38x = 125,808,698.23
  5. Step 5: Solve for x
    x = 125,808,698.23/18,559.38
  6. Step 6: Final answer
    x = 6,778.71

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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.