Home / 22,207.05-30,645.69-12,775.62

Finding the Fourth Proportional to 22,207.05, 30,645.69 and 12,775.62

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Solution

The fourth proportional to 22,207.05, 30,645.69 and 12,775.62 is: 17,630.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,207.05 : 30,645.69 = 12,775.62 : x
  2. Step 2: Convert to fraction form
    22,207.05/30,645.69 = 12,775.62/x
  3. Step 3: Cross multiply
    22,207.05x = 30,645.69 × 12,775.62
  4. Step 4: Simplify right side
    22,207.05x = 391,517,690.08
  5. Step 5: Solve for x
    x = 391,517,690.08/22,207.05
  6. Step 6: Final answer
    x = 17,630.33

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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.