Home / 21,525.97-29,694.84-13,976.56

Finding the Fourth Proportional to 21,525.97, 29,694.84 and 13,976.56

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Solution

The fourth proportional to 21,525.97, 29,694.84 and 13,976.56 is: 19,280.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,525.97 : 29,694.84 = 13,976.56 : x
  2. Step 2: Convert to fraction form
    21,525.97/29,694.84 = 13,976.56/x
  3. Step 3: Cross multiply
    21,525.97x = 29,694.84 × 13,976.56
  4. Step 4: Simplify right side
    21,525.97x = 415,031,712.95
  5. Step 5: Solve for x
    x = 415,031,712.95/21,525.97
  6. Step 6: Final answer
    x = 19,280.51

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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.