Home / 21,393.05-29,522.50-11,961.62

Finding the Fourth Proportional to 21,393.05, 29,522.50 and 11,961.62

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Solution

The fourth proportional to 21,393.05, 29,522.50 and 11,961.62 is: 16,507.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,393.05 : 29,522.50 = 11,961.62 : x
  2. Step 2: Convert to fraction form
    21,393.05/29,522.50 = 11,961.62/x
  3. Step 3: Cross multiply
    21,393.05x = 29,522.50 × 11,961.62
  4. Step 4: Simplify right side
    21,393.05x = 353,136,748.93
  5. Step 5: Solve for x
    x = 353,136,748.93/21,393.05
  6. Step 6: Final answer
    x = 16,507.08

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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.