Home / 31,441.72-47,162.95-12,470.98

Finding the Fourth Proportional to 31,441.72, 47,162.95 and 12,470.98

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Solution

The fourth proportional to 31,441.72, 47,162.95 and 12,470.98 is: 18,706.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,441.72 : 47,162.95 = 12,470.98 : x
  2. Step 2: Convert to fraction form
    31,441.72/47,162.95 = 12,470.98/x
  3. Step 3: Cross multiply
    31,441.72x = 47,162.95 × 12,470.98
  4. Step 4: Simplify right side
    31,441.72x = 588,168,057.11
  5. Step 5: Solve for x
    x = 588,168,057.11/31,441.72
  6. Step 6: Final answer
    x = 18,706.61

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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.