Home / 22,121.30-30,497.55-21,433.34

Finding the Fourth Proportional to 22,121.30, 30,497.55 and 21,433.34

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Solution

The fourth proportional to 22,121.30, 30,497.55 and 21,433.34 is: 29,549.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.30 : 30,497.55 = 21,433.34 : x
  2. Step 2: Convert to fraction form
    22,121.30/30,497.55 = 21,433.34/x
  3. Step 3: Cross multiply
    22,121.30x = 30,497.55 × 21,433.34
  4. Step 4: Simplify right side
    22,121.30x = 653,664,354.19
  5. Step 5: Solve for x
    x = 653,664,354.19/22,121.30
  6. Step 6: Final answer
    x = 29,549.09

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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.