Home / 19,775.33-29,645.77-8,081.09

Finding the Fourth Proportional to 19,775.33, 29,645.77 and 8,081.09

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Solution

The fourth proportional to 19,775.33, 29,645.77 and 8,081.09 is: 12,114.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,775.33 : 29,645.77 = 8,081.09 : x
  2. Step 2: Convert to fraction form
    19,775.33/29,645.77 = 8,081.09/x
  3. Step 3: Cross multiply
    19,775.33x = 29,645.77 × 8,081.09
  4. Step 4: Simplify right side
    19,775.33x = 239,569,967.06
  5. Step 5: Solve for x
    x = 239,569,967.06/19,775.33
  6. Step 6: Final answer
    x = 12,114.59

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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.