Home / 31,946.20-47,919.30-20,234.81

Finding the Fourth Proportional to 31,946.20, 47,919.30 and 20,234.81

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Solution

The fourth proportional to 31,946.20, 47,919.30 and 20,234.81 is: 30,352.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,946.20 : 47,919.30 = 20,234.81 : x
  2. Step 2: Convert to fraction form
    31,946.20/47,919.30 = 20,234.81/x
  3. Step 3: Cross multiply
    31,946.20x = 47,919.30 × 20,234.81
  4. Step 4: Simplify right side
    31,946.20x = 969,637,974.75
  5. Step 5: Solve for x
    x = 969,637,974.75/31,946.20
  6. Step 6: Final answer
    x = 30,352.22

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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.