Home / 21,229.54-29,229.84-19,261.24

Finding the Fourth Proportional to 21,229.54, 29,229.84 and 19,261.24

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Solution

The fourth proportional to 21,229.54, 29,229.84 and 19,261.24 is: 26,519.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,229.54 : 29,229.84 = 19,261.24 : x
  2. Step 2: Convert to fraction form
    21,229.54/29,229.84 = 19,261.24/x
  3. Step 3: Cross multiply
    21,229.54x = 29,229.84 × 19,261.24
  4. Step 4: Simplify right side
    21,229.54x = 563,002,963.40
  5. Step 5: Solve for x
    x = 563,002,963.40/21,229.54
  6. Step 6: Final answer
    x = 26,519.79

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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.