Home / 22,180.46-30,609.78-12,109.50

Finding the Fourth Proportional to 22,180.46, 30,609.78 and 12,109.50

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Solution

The fourth proportional to 22,180.46, 30,609.78 and 12,109.50 is: 16,711.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,180.46 : 30,609.78 = 12,109.50 : x
  2. Step 2: Convert to fraction form
    22,180.46/30,609.78 = 12,109.50/x
  3. Step 3: Cross multiply
    22,180.46x = 30,609.78 × 12,109.50
  4. Step 4: Simplify right side
    22,180.46x = 370,669,130.91
  5. Step 5: Solve for x
    x = 370,669,130.91/22,180.46
  6. Step 6: Final answer
    x = 16,711.52

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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.