Home / 22,231.90-30,680.62-12,160.93

Finding the Fourth Proportional to 22,231.90, 30,680.62 and 12,160.93

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Solution

The fourth proportional to 22,231.90, 30,680.62 and 12,160.93 is: 16,782.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,231.90 : 30,680.62 = 12,160.93 : x
  2. Step 2: Convert to fraction form
    22,231.90/30,680.62 = 12,160.93/x
  3. Step 3: Cross multiply
    22,231.90x = 30,680.62 × 12,160.93
  4. Step 4: Simplify right side
    22,231.90x = 373,104,872.18
  5. Step 5: Solve for x
    x = 373,104,872.18/22,231.90
  6. Step 6: Final answer
    x = 16,782.41

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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.