Home / 25,716.68-38,555.58-20,519.72

Finding the Fourth Proportional to 25,716.68, 38,555.58 and 20,519.72

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Solution

The fourth proportional to 25,716.68, 38,555.58 and 20,519.72 is: 30,764.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,716.68 : 38,555.58 = 20,519.72 : x
  2. Step 2: Convert to fraction form
    25,716.68/38,555.58 = 20,519.72/x
  3. Step 3: Cross multiply
    25,716.68x = 38,555.58 × 20,519.72
  4. Step 4: Simplify right side
    25,716.68x = 791,149,706.04
  5. Step 5: Solve for x
    x = 791,149,706.04/25,716.68
  6. Step 6: Final answer
    x = 30,764.07

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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.