Home / 20,005.22-27,611.04-11,513.06

Finding the Fourth Proportional to 20,005.22, 27,611.04 and 11,513.06

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Solution

The fourth proportional to 20,005.22, 27,611.04 and 11,513.06 is: 15,890.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,005.22 : 27,611.04 = 11,513.06 : x
  2. Step 2: Convert to fraction form
    20,005.22/27,611.04 = 11,513.06/x
  3. Step 3: Cross multiply
    20,005.22x = 27,611.04 × 11,513.06
  4. Step 4: Simplify right side
    20,005.22x = 317,887,560.18
  5. Step 5: Solve for x
    x = 317,887,560.18/20,005.22
  6. Step 6: Final answer
    x = 15,890.23

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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.