Home / 21,348.72-29,464.02-11,919.24

Finding the Fourth Proportional to 21,348.72, 29,464.02 and 11,919.24

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Solution

The fourth proportional to 21,348.72, 29,464.02 and 11,919.24 is: 16,450.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,348.72 : 29,464.02 = 11,919.24 : x
  2. Step 2: Convert to fraction form
    21,348.72/29,464.02 = 11,919.24/x
  3. Step 3: Cross multiply
    21,348.72x = 29,464.02 × 11,919.24
  4. Step 4: Simplify right side
    21,348.72x = 351,188,725.74
  5. Step 5: Solve for x
    x = 351,188,725.74/21,348.72
  6. Step 6: Final answer
    x = 16,450.11

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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.