Home / 22,392.44-30,901.56-12,960.80

Finding the Fourth Proportional to 22,392.44, 30,901.56 and 12,960.80

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Solution

The fourth proportional to 22,392.44, 30,901.56 and 12,960.80 is: 17,885.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,392.44 : 30,901.56 = 12,960.80 : x
  2. Step 2: Convert to fraction form
    22,392.44/30,901.56 = 12,960.80/x
  3. Step 3: Cross multiply
    22,392.44x = 30,901.56 × 12,960.80
  4. Step 4: Simplify right side
    22,392.44x = 400,508,938.85
  5. Step 5: Solve for x
    x = 400,508,938.85/22,392.44
  6. Step 6: Final answer
    x = 17,885.90

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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.