Home / 22,181.36-30,610.08-12,109.91

Finding the Fourth Proportional to 22,181.36, 30,610.08 and 12,109.91

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Solution

The fourth proportional to 22,181.36, 30,610.08 and 12,109.91 is: 16,711.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,181.36 : 30,610.08 = 12,109.91 : x
  2. Step 2: Convert to fraction form
    22,181.36/30,610.08 = 12,109.91/x
  3. Step 3: Cross multiply
    22,181.36x = 30,610.08 × 12,109.91
  4. Step 4: Simplify right side
    22,181.36x = 370,685,160.84
  5. Step 5: Solve for x
    x = 370,685,160.84/22,181.36
  6. Step 6: Final answer
    x = 16,711.57

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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.