Home / 34,856.80-52,288.04-20,912.12

Finding the Fourth Proportional to 34,856.80, 52,288.04 and 20,912.12

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Solution

The fourth proportional to 34,856.80, 52,288.04 and 20,912.12 is: 31,369.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,856.80 : 52,288.04 = 20,912.12 : x
  2. Step 2: Convert to fraction form
    34,856.80/52,288.04 = 20,912.12/x
  3. Step 3: Cross multiply
    34,856.80x = 52,288.04 × 20,912.12
  4. Step 4: Simplify right side
    34,856.80x = 1,093,453,767.04
  5. Step 5: Solve for x
    x = 1,093,453,767.04/34,856.80
  6. Step 6: Final answer
    x = 31,369.88

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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.