Home / 25,205.76-34,770.24-15,772.32

Finding the Fourth Proportional to 25,205.76, 34,770.24 and 15,772.32

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Solution

The fourth proportional to 25,205.76, 34,770.24 and 15,772.32 is: 21,757.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,205.76 : 34,770.24 = 15,772.32 : x
  2. Step 2: Convert to fraction form
    25,205.76/34,770.24 = 15,772.32/x
  3. Step 3: Cross multiply
    25,205.76x = 34,770.24 × 15,772.32
  4. Step 4: Simplify right side
    25,205.76x = 548,407,351.76
  5. Step 5: Solve for x
    x = 548,407,351.76/25,205.76
  6. Step 6: Final answer
    x = 21,757.22

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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.