Home / 25,380.14-35,002.94-20,656.22

Finding the Fourth Proportional to 25,380.14, 35,002.94 and 20,656.22

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Solution

The fourth proportional to 25,380.14, 35,002.94 and 20,656.22 is: 28,487.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,380.14 : 35,002.94 = 20,656.22 : x
  2. Step 2: Convert to fraction form
    25,380.14/35,002.94 = 20,656.22/x
  3. Step 3: Cross multiply
    25,380.14x = 35,002.94 × 20,656.22
  4. Step 4: Simplify right side
    25,380.14x = 723,028,150.99
  5. Step 5: Solve for x
    x = 723,028,150.99/25,380.14
  6. Step 6: Final answer
    x = 28,487.96

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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.