Home / 21,199.59-29,255.58-11,768.15

Finding the Fourth Proportional to 21,199.59, 29,255.58 and 11,768.15

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Solution

The fourth proportional to 21,199.59, 29,255.58 and 11,768.15 is: 16,240.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,199.59 : 29,255.58 = 11,768.15 : x
  2. Step 2: Convert to fraction form
    21,199.59/29,255.58 = 11,768.15/x
  3. Step 3: Cross multiply
    21,199.59x = 29,255.58 × 11,768.15
  4. Step 4: Simplify right side
    21,199.59x = 344,284,126.92
  5. Step 5: Solve for x
    x = 344,284,126.92/21,199.59
  6. Step 6: Final answer
    x = 16,240.13

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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.