Home / 21,177.39-29,224.81-11,745.95

Finding the Fourth Proportional to 21,177.39, 29,224.81 and 11,745.95

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Solution

The fourth proportional to 21,177.39, 29,224.81 and 11,745.95 is: 16,209.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,177.39 : 29,224.81 = 11,745.95 : x
  2. Step 2: Convert to fraction form
    21,177.39/29,224.81 = 11,745.95/x
  3. Step 3: Cross multiply
    21,177.39x = 29,224.81 × 11,745.95
  4. Step 4: Simplify right side
    21,177.39x = 343,273,165.39
  5. Step 5: Solve for x
    x = 343,273,165.39/21,177.39
  6. Step 6: Final answer
    x = 16,209.42

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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.