Home / 25,789.65-38,671.71-9,147.19

Finding the Fourth Proportional to 25,789.65, 38,671.71 and 9,147.19

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Solution

The fourth proportional to 25,789.65, 38,671.71 and 9,147.19 is: 13,716.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,789.65 : 38,671.71 = 9,147.19 : x
  2. Step 2: Convert to fraction form
    25,789.65/38,671.71 = 9,147.19/x
  3. Step 3: Cross multiply
    25,789.65x = 38,671.71 × 9,147.19
  4. Step 4: Simplify right side
    25,789.65x = 353,737,363.21
  5. Step 5: Solve for x
    x = 353,737,363.21/25,789.65
  6. Step 6: Final answer
    x = 13,716.25

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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.