Home / 21,095.62-31,648.23-11,229.70

Finding the Fourth Proportional to 21,095.62, 31,648.23 and 11,229.70

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Solution

The fourth proportional to 21,095.62, 31,648.23 and 11,229.70 is: 16,847.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,095.62 : 31,648.23 = 11,229.70 : x
  2. Step 2: Convert to fraction form
    21,095.62/31,648.23 = 11,229.70/x
  3. Step 3: Cross multiply
    21,095.62x = 31,648.23 × 11,229.70
  4. Step 4: Simplify right side
    21,095.62x = 355,400,128.43
  5. Step 5: Solve for x
    x = 355,400,128.43/21,095.62
  6. Step 6: Final answer
    x = 16,847.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.