Home / 21,963.72-30,310.00-11,892.08

Finding the Fourth Proportional to 21,963.72, 30,310.00 and 11,892.08

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Solution

The fourth proportional to 21,963.72, 30,310.00 and 11,892.08 is: 16,411.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.72 : 30,310.00 = 11,892.08 : x
  2. Step 2: Convert to fraction form
    21,963.72/30,310.00 = 11,892.08/x
  3. Step 3: Cross multiply
    21,963.72x = 30,310.00 × 11,892.08
  4. Step 4: Simplify right side
    21,963.72x = 360,448,990.84
  5. Step 5: Solve for x
    x = 360,448,990.84/21,963.72
  6. Step 6: Final answer
    x = 16,411.11

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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.