Home / 22,278.39-30,744.15-12,207.46

Finding the Fourth Proportional to 22,278.39, 30,744.15 and 12,207.46

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Solution

The fourth proportional to 22,278.39, 30,744.15 and 12,207.46 is: 16,846.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,278.39 : 30,744.15 = 12,207.46 : x
  2. Step 2: Convert to fraction form
    22,278.39/30,744.15 = 12,207.46/x
  3. Step 3: Cross multiply
    22,278.39x = 30,744.15 × 12,207.46
  4. Step 4: Simplify right side
    22,278.39x = 375,307,981.36
  5. Step 5: Solve for x
    x = 375,307,981.36/22,278.39
  6. Step 6: Final answer
    x = 16,846.28

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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.