Home / 31,996.70-48,016.65-20,876.30

Finding the Fourth Proportional to 31,996.70, 48,016.65 and 20,876.30

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Solution

The fourth proportional to 31,996.70, 48,016.65 and 20,876.30 is: 31,328.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,996.70 : 48,016.65 = 20,876.30 : x
  2. Step 2: Convert to fraction form
    31,996.70/48,016.65 = 20,876.30/x
  3. Step 3: Cross multiply
    31,996.70x = 48,016.65 × 20,876.30
  4. Step 4: Simplify right side
    31,996.70x = 1,002,409,990.40
  5. Step 5: Solve for x
    x = 1,002,409,990.40/31,996.70
  6. Step 6: Final answer
    x = 31,328.54

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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.