Home / 22,260.05-30,717.90-12,188.30

Finding the Fourth Proportional to 22,260.05, 30,717.90 and 12,188.30

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Solution

The fourth proportional to 22,260.05, 30,717.90 and 12,188.30 is: 16,819.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,260.05 : 30,717.90 = 12,188.30 : x
  2. Step 2: Convert to fraction form
    22,260.05/30,717.90 = 12,188.30/x
  3. Step 3: Cross multiply
    22,260.05x = 30,717.90 × 12,188.30
  4. Step 4: Simplify right side
    22,260.05x = 374,398,980.57
  5. Step 5: Solve for x
    x = 374,398,980.57/22,260.05
  6. Step 6: Final answer
    x = 16,819.33

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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.