Home / 19,759.38-27,294.57-15,808.74

Finding the Fourth Proportional to 19,759.38, 27,294.57 and 15,808.74

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Solution

The fourth proportional to 19,759.38, 27,294.57 and 15,808.74 is: 21,837.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,759.38 : 27,294.57 = 15,808.74 : x
  2. Step 2: Convert to fraction form
    19,759.38/27,294.57 = 15,808.74/x
  3. Step 3: Cross multiply
    19,759.38x = 27,294.57 × 15,808.74
  4. Step 4: Simplify right side
    19,759.38x = 431,492,760.54
  5. Step 5: Solve for x
    x = 431,492,760.54/19,759.38
  6. Step 6: Final answer
    x = 21,837.36

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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.