Home / 21,979.01-32,955.82-19,351.79

Finding the Fourth Proportional to 21,979.01, 32,955.82 and 19,351.79

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Solution

The fourth proportional to 21,979.01, 32,955.82 and 19,351.79 is: 29,016.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,979.01 : 32,955.82 = 19,351.79 : x
  2. Step 2: Convert to fraction form
    21,979.01/32,955.82 = 19,351.79/x
  3. Step 3: Cross multiply
    21,979.01x = 32,955.82 × 19,351.79
  4. Step 4: Simplify right side
    21,979.01x = 637,754,107.92
  5. Step 5: Solve for x
    x = 637,754,107.92/21,979.01
  6. Step 6: Final answer
    x = 29,016.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.