Home / 19,722.92-27,221.15-11,656.25

Finding the Fourth Proportional to 19,722.92, 27,221.15 and 11,656.25

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Solution

The fourth proportional to 19,722.92, 27,221.15 and 11,656.25 is: 16,087.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,722.92 : 27,221.15 = 11,656.25 : x
  2. Step 2: Convert to fraction form
    19,722.92/27,221.15 = 11,656.25/x
  3. Step 3: Cross multiply
    19,722.92x = 27,221.15 × 11,656.25
  4. Step 4: Simplify right side
    19,722.92x = 317,296,335.30
  5. Step 5: Solve for x
    x = 317,296,335.30/19,722.92
  6. Step 6: Final answer
    x = 16,087.70

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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.