Home / 25,825.47-35,640.32-20,226.75

Finding the Fourth Proportional to 25,825.47, 35,640.32 and 20,226.75

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Solution

The fourth proportional to 25,825.47, 35,640.32 and 20,226.75 is: 27,913.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,825.47 : 35,640.32 = 20,226.75 : x
  2. Step 2: Convert to fraction form
    25,825.47/35,640.32 = 20,226.75/x
  3. Step 3: Cross multiply
    25,825.47x = 35,640.32 × 20,226.75
  4. Step 4: Simplify right side
    25,825.47x = 720,887,741.43
  5. Step 5: Solve for x
    x = 720,887,741.43/25,825.47
  6. Step 6: Final answer
    x = 27,913.83

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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.