Home / 25,739.96-35,517.84-15,125.72

Finding the Fourth Proportional to 25,739.96, 35,517.84 and 15,125.72

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Solution

The fourth proportional to 25,739.96, 35,517.84 and 15,125.72 is: 20,871.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,739.96 : 35,517.84 = 15,125.72 : x
  2. Step 2: Convert to fraction form
    25,739.96/35,517.84 = 15,125.72/x
  3. Step 3: Cross multiply
    25,739.96x = 35,517.84 × 15,125.72
  4. Step 4: Simplify right side
    25,739.96x = 537,232,902.84
  5. Step 5: Solve for x
    x = 537,232,902.84/25,739.96
  6. Step 6: Final answer
    x = 20,871.55

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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.