Home / 22,205.87-30,643.54-12,134.36

Finding the Fourth Proportional to 22,205.87, 30,643.54 and 12,134.36

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Solution

The fourth proportional to 22,205.87, 30,643.54 and 12,134.36 is: 16,745.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,205.87 : 30,643.54 = 12,134.36 : x
  2. Step 2: Convert to fraction form
    22,205.87/30,643.54 = 12,134.36/x
  3. Step 3: Cross multiply
    22,205.87x = 30,643.54 × 12,134.36
  4. Step 4: Simplify right side
    22,205.87x = 371,839,746.03
  5. Step 5: Solve for x
    x = 371,839,746.03/22,205.87
  6. Step 6: Final answer
    x = 16,745.11

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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.