Home / 21,917.21-32,876.24-7,126.08

Finding the Fourth Proportional to 21,917.21, 32,876.24 and 7,126.08

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Solution

The fourth proportional to 21,917.21, 32,876.24 and 7,126.08 is: 10,689.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,917.21 : 32,876.24 = 7,126.08 : x
  2. Step 2: Convert to fraction form
    21,917.21/32,876.24 = 7,126.08/x
  3. Step 3: Cross multiply
    21,917.21x = 32,876.24 × 7,126.08
  4. Step 4: Simplify right side
    21,917.21x = 234,278,680.71
  5. Step 5: Solve for x
    x = 234,278,680.71/21,917.21
  6. Step 6: Final answer
    x = 10,689.26

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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.