Home / 22,031.91-30,396.79-12,470.85

Finding the Fourth Proportional to 22,031.91, 30,396.79 and 12,470.85

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Solution

The fourth proportional to 22,031.91, 30,396.79 and 12,470.85 is: 17,205.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,031.91 : 30,396.79 = 12,470.85 : x
  2. Step 2: Convert to fraction form
    22,031.91/30,396.79 = 12,470.85/x
  3. Step 3: Cross multiply
    22,031.91x = 30,396.79 × 12,470.85
  4. Step 4: Simplify right side
    22,031.91x = 379,073,816.49
  5. Step 5: Solve for x
    x = 379,073,816.49/22,031.91
  6. Step 6: Final answer
    x = 17,205.67

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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.