Home / 21,959.62-30,308.57-17,170.09

Finding the Fourth Proportional to 21,959.62, 30,308.57 and 17,170.09

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Solution

The fourth proportional to 21,959.62, 30,308.57 and 17,170.09 is: 23,698.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,959.62 : 30,308.57 = 17,170.09 : x
  2. Step 2: Convert to fraction form
    21,959.62/30,308.57 = 17,170.09/x
  3. Step 3: Cross multiply
    21,959.62x = 30,308.57 × 17,170.09
  4. Step 4: Simplify right side
    21,959.62x = 520,400,874.67
  5. Step 5: Solve for x
    x = 520,400,874.67/21,959.62
  6. Step 6: Final answer
    x = 23,698.08

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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.