Home / 21,896.95-30,217.82-12,465.50

Finding the Fourth Proportional to 21,896.95, 30,217.82 and 12,465.50

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Solution

The fourth proportional to 21,896.95, 30,217.82 and 12,465.50 is: 17,202.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,896.95 : 30,217.82 = 12,465.50 : x
  2. Step 2: Convert to fraction form
    21,896.95/30,217.82 = 12,465.50/x
  3. Step 3: Cross multiply
    21,896.95x = 30,217.82 × 12,465.50
  4. Step 4: Simplify right side
    21,896.95x = 376,680,235.21
  5. Step 5: Solve for x
    x = 376,680,235.21/21,896.95
  6. Step 6: Final answer
    x = 17,202.41

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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.