Home / 31,120.20-46,680.30-10,343.70

Finding the Fourth Proportional to 31,120.20, 46,680.30 and 10,343.70

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Solution

The fourth proportional to 31,120.20, 46,680.30 and 10,343.70 is: 15,515.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,120.20 : 46,680.30 = 10,343.70 : x
  2. Step 2: Convert to fraction form
    31,120.20/46,680.30 = 10,343.70/x
  3. Step 3: Cross multiply
    31,120.20x = 46,680.30 × 10,343.70
  4. Step 4: Simplify right side
    31,120.20x = 482,847,019.11
  5. Step 5: Solve for x
    x = 482,847,019.11/31,120.20
  6. Step 6: Final answer
    x = 15,515.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.