Home / 25,759.82-38,639.84-9,120.06

Finding the Fourth Proportional to 25,759.82, 38,639.84 and 9,120.06

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Solution

The fourth proportional to 25,759.82, 38,639.84 and 9,120.06 is: 13,680.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,759.82 : 38,639.84 = 9,120.06 : x
  2. Step 2: Convert to fraction form
    25,759.82/38,639.84 = 9,120.06/x
  3. Step 3: Cross multiply
    25,759.82x = 38,639.84 × 9,120.06
  4. Step 4: Simplify right side
    25,759.82x = 352,397,613.59
  5. Step 5: Solve for x
    x = 352,397,613.59/25,759.82
  6. Step 6: Final answer
    x = 13,680.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.