Home / 38,759.11-53,486.89-21,763.49

Finding the Fourth Proportional to 38,759.11, 53,486.89 and 21,763.49

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Solution

The fourth proportional to 38,759.11, 53,486.89 and 21,763.49 is: 30,033.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,759.11 : 53,486.89 = 21,763.49 : x
  2. Step 2: Convert to fraction form
    38,759.11/53,486.89 = 21,763.49/x
  3. Step 3: Cross multiply
    38,759.11x = 53,486.89 × 21,763.49
  4. Step 4: Simplify right side
    38,759.11x = 1,164,061,450.05
  5. Step 5: Solve for x
    x = 1,164,061,450.05/38,759.11
  6. Step 6: Final answer
    x = 30,033.23

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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.