Home / 31,439.55-47,149.32-10,375.67

Finding the Fourth Proportional to 31,439.55, 47,149.32 and 10,375.67

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Solution

The fourth proportional to 31,439.55, 47,149.32 and 10,375.67 is: 15,560.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,439.55 : 47,149.32 = 10,375.67 : x
  2. Step 2: Convert to fraction form
    31,439.55/47,149.32 = 10,375.67/x
  3. Step 3: Cross multiply
    31,439.55x = 47,149.32 × 10,375.67
  4. Step 4: Simplify right side
    31,439.55x = 489,205,809.22
  5. Step 5: Solve for x
    x = 489,205,809.22/31,439.55
  6. Step 6: Final answer
    x = 15,560.20

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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.