Home / 21,393.45-29,522.88-11,962.08

Finding the Fourth Proportional to 21,393.45, 29,522.88 and 11,962.08

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Solution

The fourth proportional to 21,393.45, 29,522.88 and 11,962.08 is: 16,507.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,393.45 : 29,522.88 = 11,962.08 : x
  2. Step 2: Convert to fraction form
    21,393.45/29,522.88 = 11,962.08/x
  3. Step 3: Cross multiply
    21,393.45x = 29,522.88 × 11,962.08
  4. Step 4: Simplify right side
    21,393.45x = 353,155,052.39
  5. Step 5: Solve for x
    x = 353,155,052.39/21,393.45
  6. Step 6: Final answer
    x = 16,507.63

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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.