Home / 21,917.45-32,876.61-7,126.33

Finding the Fourth Proportional to 21,917.45, 32,876.61 and 7,126.33

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Solution

The fourth proportional to 21,917.45, 32,876.61 and 7,126.33 is: 10,689.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,917.45 : 32,876.61 = 7,126.33 : x
  2. Step 2: Convert to fraction form
    21,917.45/32,876.61 = 7,126.33/x
  3. Step 3: Cross multiply
    21,917.45x = 32,876.61 × 7,126.33
  4. Step 4: Simplify right side
    21,917.45x = 234,289,572.14
  5. Step 5: Solve for x
    x = 234,289,572.14/21,917.45
  6. Step 6: Final answer
    x = 10,689.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.