Home / 22,359.76-30,857.28-12,288.97

Finding the Fourth Proportional to 22,359.76, 30,857.28 and 12,288.97

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Solution

The fourth proportional to 22,359.76, 30,857.28 and 12,288.97 is: 16,959.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,359.76 : 30,857.28 = 12,288.97 : x
  2. Step 2: Convert to fraction form
    22,359.76/30,857.28 = 12,288.97/x
  3. Step 3: Cross multiply
    22,359.76x = 30,857.28 × 12,288.97
  4. Step 4: Simplify right side
    22,359.76x = 379,204,041.68
  5. Step 5: Solve for x
    x = 379,204,041.68/22,359.76
  6. Step 6: Final answer
    x = 16,959.22

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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.