Home / 21,336.20-29,454.20-12,382.26

Finding the Fourth Proportional to 21,336.20, 29,454.20 and 12,382.26

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Solution

The fourth proportional to 21,336.20, 29,454.20 and 12,382.26 is: 17,093.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,336.20 : 29,454.20 = 12,382.26 : x
  2. Step 2: Convert to fraction form
    21,336.20/29,454.20 = 12,382.26/x
  3. Step 3: Cross multiply
    21,336.20x = 29,454.20 × 12,382.26
  4. Step 4: Simplify right side
    21,336.20x = 364,709,562.49
  5. Step 5: Solve for x
    x = 364,709,562.49/21,336.20
  6. Step 6: Final answer
    x = 17,093.46

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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.