Home / 21,522.60-29,700.78-11,962.38

Finding the Fourth Proportional to 21,522.60, 29,700.78 and 11,962.38

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Solution

The fourth proportional to 21,522.60, 29,700.78 and 11,962.38 is: 16,507.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,522.60 : 29,700.78 = 11,962.38 : x
  2. Step 2: Convert to fraction form
    21,522.60/29,700.78 = 11,962.38/x
  3. Step 3: Cross multiply
    21,522.60x = 29,700.78 × 11,962.38
  4. Step 4: Simplify right side
    21,522.60x = 355,292,016.66
  5. Step 5: Solve for x
    x = 355,292,016.66/21,522.60
  6. Step 6: Final answer
    x = 16,507.86

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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.