Home / 21,451.45-29,603.01-13,067.95

Finding the Fourth Proportional to 21,451.45, 29,603.01 and 13,067.95

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Solution

The fourth proportional to 21,451.45, 29,603.01 and 13,067.95 is: 18,033.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,451.45 : 29,603.01 = 13,067.95 : x
  2. Step 2: Convert to fraction form
    21,451.45/29,603.01 = 13,067.95/x
  3. Step 3: Cross multiply
    21,451.45x = 29,603.01 × 13,067.95
  4. Step 4: Simplify right side
    21,451.45x = 386,850,441.17
  5. Step 5: Solve for x
    x = 386,850,441.17/21,451.45
  6. Step 6: Final answer
    x = 18,033.77

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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.