Home / 25,305.03-34,921.13-13,974.21

Finding the Fourth Proportional to 25,305.03, 34,921.13 and 13,974.21

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Solution

The fourth proportional to 25,305.03, 34,921.13 and 13,974.21 is: 19,284.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,305.03 : 34,921.13 = 13,974.21 : x
  2. Step 2: Convert to fraction form
    25,305.03/34,921.13 = 13,974.21/x
  3. Step 3: Cross multiply
    25,305.03x = 34,921.13 × 13,974.21
  4. Step 4: Simplify right side
    25,305.03x = 487,995,134.19
  5. Step 5: Solve for x
    x = 487,995,134.19/25,305.03
  6. Step 6: Final answer
    x = 19,284.51

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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.