Home / 22,190.50-30,623.13-12,119.23

Finding the Fourth Proportional to 22,190.50, 30,623.13 and 12,119.23

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Solution

The fourth proportional to 22,190.50, 30,623.13 and 12,119.23 is: 16,724.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,190.50 : 30,623.13 = 12,119.23 : x
  2. Step 2: Convert to fraction form
    22,190.50/30,623.13 = 12,119.23/x
  3. Step 3: Cross multiply
    22,190.50x = 30,623.13 × 12,119.23
  4. Step 4: Simplify right side
    22,190.50x = 371,128,755.79
  5. Step 5: Solve for x
    x = 371,128,755.79/22,190.50
  6. Step 6: Final answer
    x = 16,724.67

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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.