Home / 25,825.61-35,674.47-20,231.15

Finding the Fourth Proportional to 25,825.61, 35,674.47 and 20,231.15

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Solution

The fourth proportional to 25,825.61, 35,674.47 and 20,231.15 is: 27,946.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,825.61 : 35,674.47 = 20,231.15 : x
  2. Step 2: Convert to fraction form
    25,825.61/35,674.47 = 20,231.15/x
  3. Step 3: Cross multiply
    25,825.61x = 35,674.47 × 20,231.15
  4. Step 4: Simplify right side
    25,825.61x = 721,735,375.37
  5. Step 5: Solve for x
    x = 721,735,375.37/25,825.61
  6. Step 6: Final answer
    x = 27,946.50

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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.