Home / 20,207.16-27,881.82-11,822.04

Finding the Fourth Proportional to 20,207.16, 27,881.82 and 11,822.04

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Solution

The fourth proportional to 20,207.16, 27,881.82 and 11,822.04 is: 16,312.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.16 : 27,881.82 = 11,822.04 : x
  2. Step 2: Convert to fraction form
    20,207.16/27,881.82 = 11,822.04/x
  3. Step 3: Cross multiply
    20,207.16x = 27,881.82 × 11,822.04
  4. Step 4: Simplify right side
    20,207.16x = 329,619,991.31
  5. Step 5: Solve for x
    x = 329,619,991.31/20,207.16
  6. Step 6: Final answer
    x = 16,312.04

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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.