Home / 19,398.90-29,112.84-13,144.08

Finding the Fourth Proportional to 19,398.90, 29,112.84 and 13,144.08

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Solution

The fourth proportional to 19,398.90, 29,112.84 and 13,144.08 is: 19,725.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,398.90 : 29,112.84 = 13,144.08 : x
  2. Step 2: Convert to fraction form
    19,398.90/29,112.84 = 13,144.08/x
  3. Step 3: Cross multiply
    19,398.90x = 29,112.84 × 13,144.08
  4. Step 4: Simplify right side
    19,398.90x = 382,661,286.70
  5. Step 5: Solve for x
    x = 382,661,286.70/19,398.90
  6. Step 6: Final answer
    x = 19,725.93

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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.