Home / 38,517.96-53,153.78-21,522.34

Finding the Fourth Proportional to 38,517.96, 53,153.78 and 21,522.34

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Solution

The fourth proportional to 38,517.96, 53,153.78 and 21,522.34 is: 29,700.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,517.96 : 53,153.78 = 21,522.34 : x
  2. Step 2: Convert to fraction form
    38,517.96/53,153.78 = 21,522.34/x
  3. Step 3: Cross multiply
    38,517.96x = 53,153.78 × 21,522.34
  4. Step 4: Simplify right side
    38,517.96x = 1,143,993,764.98
  5. Step 5: Solve for x
    x = 1,143,993,764.98/38,517.96
  6. Step 6: Final answer
    x = 29,700.27

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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.