Home / 19,972.65-27,542.58-15,494.79

Finding the Fourth Proportional to 19,972.65, 27,542.58 and 15,494.79

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Solution

The fourth proportional to 19,972.65, 27,542.58 and 15,494.79 is: 21,367.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.65 : 27,542.58 = 15,494.79 : x
  2. Step 2: Convert to fraction form
    19,972.65/27,542.58 = 15,494.79/x
  3. Step 3: Cross multiply
    19,972.65x = 27,542.58 × 15,494.79
  4. Step 4: Simplify right side
    19,972.65x = 426,766,493.16
  5. Step 5: Solve for x
    x = 426,766,493.16/19,972.65
  6. Step 6: Final answer
    x = 21,367.54

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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.