Home / 21,876.35-30,199.64-17,103.29

Finding the Fourth Proportional to 21,876.35, 30,199.64 and 17,103.29

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Solution

The fourth proportional to 21,876.35, 30,199.64 and 17,103.29 is: 23,610.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,876.35 : 30,199.64 = 17,103.29 : x
  2. Step 2: Convert to fraction form
    21,876.35/30,199.64 = 17,103.29/x
  3. Step 3: Cross multiply
    21,876.35x = 30,199.64 × 17,103.29
  4. Step 4: Simplify right side
    21,876.35x = 516,512,964.30
  5. Step 5: Solve for x
    x = 516,512,964.30/21,876.35
  6. Step 6: Final answer
    x = 23,610.57

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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.