Home / 25,149.12-34,702.08-13,971.12

Finding the Fourth Proportional to 25,149.12, 34,702.08 and 13,971.12

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Solution

The fourth proportional to 25,149.12, 34,702.08 and 13,971.12 is: 19,278.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,149.12 : 34,702.08 = 13,971.12 : x
  2. Step 2: Convert to fraction form
    25,149.12/34,702.08 = 13,971.12/x
  3. Step 3: Cross multiply
    25,149.12x = 34,702.08 × 13,971.12
  4. Step 4: Simplify right side
    25,149.12x = 484,826,923.93
  5. Step 5: Solve for x
    x = 484,826,923.93/25,149.12
  6. Step 6: Final answer
    x = 19,278.09

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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.