Home / 21,454.35-29,606.94-12,022.91

Finding the Fourth Proportional to 21,454.35, 29,606.94 and 12,022.91

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Solution

The fourth proportional to 21,454.35, 29,606.94 and 12,022.91 is: 16,591.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.35 : 29,606.94 = 12,022.91 : x
  2. Step 2: Convert to fraction form
    21,454.35/29,606.94 = 12,022.91/x
  3. Step 3: Cross multiply
    21,454.35x = 29,606.94 × 12,022.91
  4. Step 4: Simplify right side
    21,454.35x = 355,961,426.96
  5. Step 5: Solve for x
    x = 355,961,426.96/21,454.35
  6. Step 6: Final answer
    x = 16,591.57

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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.