Home / 22,377.87-30,880.84-12,306.31

Finding the Fourth Proportional to 22,377.87, 30,880.84 and 12,306.31

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Solution

The fourth proportional to 22,377.87, 30,880.84 and 12,306.31 is: 16,982.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,377.87 : 30,880.84 = 12,306.31 : x
  2. Step 2: Convert to fraction form
    22,377.87/30,880.84 = 12,306.31/x
  3. Step 3: Cross multiply
    22,377.87x = 30,880.84 × 12,306.31
  4. Step 4: Simplify right side
    22,377.87x = 380,029,178.70
  5. Step 5: Solve for x
    x = 380,029,178.70/22,377.87
  6. Step 6: Final answer
    x = 16,982.37

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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.