Home / 22,375.45-30,878.95-12,304.77

Finding the Fourth Proportional to 22,375.45, 30,878.95 and 12,304.77

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Solution

The fourth proportional to 22,375.45, 30,878.95 and 12,304.77 is: 16,981.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,375.45 : 30,878.95 = 12,304.77 : x
  2. Step 2: Convert to fraction form
    22,375.45/30,878.95 = 12,304.77/x
  3. Step 3: Cross multiply
    22,375.45x = 30,878.95 × 12,304.77
  4. Step 4: Simplify right side
    22,375.45x = 379,958,346.83
  5. Step 5: Solve for x
    x = 379,958,346.83/22,375.45
  6. Step 6: Final answer
    x = 16,981.04

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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.