Home / 25,305.05-34,920.10-13,974.37

Finding the Fourth Proportional to 25,305.05, 34,920.10 and 13,974.37

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Solution

The fourth proportional to 25,305.05, 34,920.10 and 13,974.37 is: 19,284.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,305.05 : 34,920.10 = 13,974.37 : x
  2. Step 2: Convert to fraction form
    25,305.05/34,920.10 = 13,974.37/x
  3. Step 3: Cross multiply
    25,305.05x = 34,920.10 × 13,974.37
  4. Step 4: Simplify right side
    25,305.05x = 487,986,397.84
  5. Step 5: Solve for x
    x = 487,986,397.84/25,305.05
  6. Step 6: Final answer
    x = 19,284.15

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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.