Home / 19,860.92-27,408.39-10,909.25

Finding the Fourth Proportional to 19,860.92, 27,408.39 and 10,909.25

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Solution

The fourth proportional to 19,860.92, 27,408.39 and 10,909.25 is: 15,054.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.92 : 27,408.39 = 10,909.25 : x
  2. Step 2: Convert to fraction form
    19,860.92/27,408.39 = 10,909.25/x
  3. Step 3: Cross multiply
    19,860.92x = 27,408.39 × 10,909.25
  4. Step 4: Simplify right side
    19,860.92x = 299,004,978.61
  5. Step 5: Solve for x
    x = 299,004,978.61/19,860.92
  6. Step 6: Final answer
    x = 15,054.94

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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.