Home / 21,554.45-29,758.81-14,759.85

Finding the Fourth Proportional to 21,554.45, 29,758.81 and 14,759.85

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Solution

The fourth proportional to 21,554.45, 29,758.81 and 14,759.85 is: 20,377.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,554.45 : 29,758.81 = 14,759.85 : x
  2. Step 2: Convert to fraction form
    21,554.45/29,758.81 = 14,759.85/x
  3. Step 3: Cross multiply
    21,554.45x = 29,758.81 × 14,759.85
  4. Step 4: Simplify right side
    21,554.45x = 439,235,571.78
  5. Step 5: Solve for x
    x = 439,235,571.78/21,554.45
  6. Step 6: Final answer
    x = 20,377.95

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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.