Home / 19,729.05-27,170.76-19,667.55

Finding the Fourth Proportional to 19,729.05, 27,170.76 and 19,667.55

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Solution

The fourth proportional to 19,729.05, 27,170.76 and 19,667.55 is: 27,086.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,729.05 : 27,170.76 = 19,667.55 : x
  2. Step 2: Convert to fraction form
    19,729.05/27,170.76 = 19,667.55/x
  3. Step 3: Cross multiply
    19,729.05x = 27,170.76 × 19,667.55
  4. Step 4: Simplify right side
    19,729.05x = 534,382,280.84
  5. Step 5: Solve for x
    x = 534,382,280.84/19,729.05
  6. Step 6: Final answer
    x = 27,086.06

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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.