Home / 21,319.38-29,418.30-12,244.24

Finding the Fourth Proportional to 21,319.38, 29,418.30 and 12,244.24

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Solution

The fourth proportional to 21,319.38, 29,418.30 and 12,244.24 is: 16,895.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,319.38 : 29,418.30 = 12,244.24 : x
  2. Step 2: Convert to fraction form
    21,319.38/29,418.30 = 12,244.24/x
  3. Step 3: Cross multiply
    21,319.38x = 29,418.30 × 12,244.24
  4. Step 4: Simplify right side
    21,319.38x = 360,204,725.59
  5. Step 5: Solve for x
    x = 360,204,725.59/21,319.38
  6. Step 6: Final answer
    x = 16,895.65

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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.