Home / 25,209.06-34,789.34-13,879.12

Finding the Fourth Proportional to 25,209.06, 34,789.34 and 13,879.12

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Solution

The fourth proportional to 25,209.06, 34,789.34 and 13,879.12 is: 19,153.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,209.06 : 34,789.34 = 13,879.12 : x
  2. Step 2: Convert to fraction form
    25,209.06/34,789.34 = 13,879.12/x
  3. Step 3: Cross multiply
    25,209.06x = 34,789.34 × 13,879.12
  4. Step 4: Simplify right side
    25,209.06x = 482,845,372.31
  5. Step 5: Solve for x
    x = 482,845,372.31/25,209.06
  6. Step 6: Final answer
    x = 19,153.64

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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.