Home / 25,723.45-35,450.99-21,219.85

Finding the Fourth Proportional to 25,723.45, 35,450.99 and 21,219.85

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Solution

The fourth proportional to 25,723.45, 35,450.99 and 21,219.85 is: 29,244.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,723.45 : 35,450.99 = 21,219.85 : x
  2. Step 2: Convert to fraction form
    25,723.45/35,450.99 = 21,219.85/x
  3. Step 3: Cross multiply
    25,723.45x = 35,450.99 × 21,219.85
  4. Step 4: Simplify right side
    25,723.45x = 752,264,575.00
  5. Step 5: Solve for x
    x = 752,264,575.00/25,723.45
  6. Step 6: Final answer
    x = 29,244.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.