Home / 25,705.80-38,544.30-10,912.20

Finding the Fourth Proportional to 25,705.80, 38,544.30 and 10,912.20

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Solution

The fourth proportional to 25,705.80, 38,544.30 and 10,912.20 is: 16,362.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,705.80 : 38,544.30 = 10,912.20 : x
  2. Step 2: Convert to fraction form
    25,705.80/38,544.30 = 10,912.20/x
  3. Step 3: Cross multiply
    25,705.80x = 38,544.30 × 10,912.20
  4. Step 4: Simplify right side
    25,705.80x = 420,603,110.46
  5. Step 5: Solve for x
    x = 420,603,110.46/25,705.80
  6. Step 6: Final answer
    x = 16,362.19

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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.