Home / 22,378.47-30,882.96-12,306.39

Finding the Fourth Proportional to 22,378.47, 30,882.96 and 12,306.39

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Solution

The fourth proportional to 22,378.47, 30,882.96 and 12,306.39 is: 16,983.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,378.47 : 30,882.96 = 12,306.39 : x
  2. Step 2: Convert to fraction form
    22,378.47/30,882.96 = 12,306.39/x
  3. Step 3: Cross multiply
    22,378.47x = 30,882.96 × 12,306.39
  4. Step 4: Simplify right side
    22,378.47x = 380,057,750.11
  5. Step 5: Solve for x
    x = 380,057,750.11/22,378.47
  6. Step 6: Final answer
    x = 16,983.19

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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.