Home / 25,770.88-35,559.04-15,162.56

Finding the Fourth Proportional to 25,770.88, 35,559.04 and 15,162.56

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Solution

The fourth proportional to 25,770.88, 35,559.04 and 15,162.56 is: 20,921.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,770.88 : 35,559.04 = 15,162.56 : x
  2. Step 2: Convert to fraction form
    25,770.88/35,559.04 = 15,162.56/x
  3. Step 3: Cross multiply
    25,770.88x = 35,559.04 × 15,162.56
  4. Step 4: Simplify right side
    25,770.88x = 539,166,077.54
  5. Step 5: Solve for x
    x = 539,166,077.54/25,770.88
  6. Step 6: Final answer
    x = 20,921.52

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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.