Home / 19,634.90-29,394.49-12,959.09

Finding the Fourth Proportional to 19,634.90, 29,394.49 and 12,959.09

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Solution

The fourth proportional to 19,634.90, 29,394.49 and 12,959.09 is: 19,400.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,634.90 : 29,394.49 = 12,959.09 : x
  2. Step 2: Convert to fraction form
    19,634.90/29,394.49 = 12,959.09/x
  3. Step 3: Cross multiply
    19,634.90x = 29,394.49 × 12,959.09
  4. Step 4: Simplify right side
    19,634.90x = 380,925,629.65
  5. Step 5: Solve for x
    x = 380,925,629.65/19,634.90
  6. Step 6: Final answer
    x = 19,400.44

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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.