Home / 15,231.69-22,845.78-4,138.20

Finding the Fourth Proportional to 15,231.69, 22,845.78 and 4,138.20

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Solution

The fourth proportional to 15,231.69, 22,845.78 and 4,138.20 is: 6,206.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,231.69 : 22,845.78 = 4,138.20 : x
  2. Step 2: Convert to fraction form
    15,231.69/22,845.78 = 4,138.20/x
  3. Step 3: Cross multiply
    15,231.69x = 22,845.78 × 4,138.20
  4. Step 4: Simplify right side
    15,231.69x = 94,540,406.80
  5. Step 5: Solve for x
    x = 94,540,406.80/15,231.69
  6. Step 6: Final answer
    x = 6,206.82

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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.