Home / 36,912.30-55,368.45-21,311.70

Finding the Fourth Proportional to 36,912.30, 55,368.45 and 21,311.70

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Solution

The fourth proportional to 36,912.30, 55,368.45 and 21,311.70 is: 31,967.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,912.30 : 55,368.45 = 21,311.70 : x
  2. Step 2: Convert to fraction form
    36,912.30/55,368.45 = 21,311.70/x
  3. Step 3: Cross multiply
    36,912.30x = 55,368.45 × 21,311.70
  4. Step 4: Simplify right side
    36,912.30x = 1,179,995,795.87
  5. Step 5: Solve for x
    x = 1,179,995,795.87/36,912.30
  6. Step 6: Final answer
    x = 31,967.55

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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.