Home / 31,630.41-47,445.62-8,256.65

Finding the Fourth Proportional to 31,630.41, 47,445.62 and 8,256.65

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Solution

The fourth proportional to 31,630.41, 47,445.62 and 8,256.65 is: 12,384.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,630.41 : 47,445.62 = 8,256.65 : x
  2. Step 2: Convert to fraction form
    31,630.41/47,445.62 = 8,256.65/x
  3. Step 3: Cross multiply
    31,630.41x = 47,445.62 × 8,256.65
  4. Step 4: Simplify right side
    31,630.41x = 391,741,599.86
  5. Step 5: Solve for x
    x = 391,741,599.86/31,630.41
  6. Step 6: Final answer
    x = 12,384.97

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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.