Home / 22,188.03-30,620.73-12,117.41

Finding the Fourth Proportional to 22,188.03, 30,620.73 and 12,117.41

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Solution

The fourth proportional to 22,188.03, 30,620.73 and 12,117.41 is: 16,722.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,188.03 : 30,620.73 = 12,117.41 : x
  2. Step 2: Convert to fraction form
    22,188.03/30,620.73 = 12,117.41/x
  3. Step 3: Cross multiply
    22,188.03x = 30,620.73 × 12,117.41
  4. Step 4: Simplify right side
    22,188.03x = 371,043,939.91
  5. Step 5: Solve for x
    x = 371,043,939.91/22,188.03
  6. Step 6: Final answer
    x = 16,722.71

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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.