Home / 21,414.36-32,118.30-7,372.20

Finding the Fourth Proportional to 21,414.36, 32,118.30 and 7,372.20

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Solution

The fourth proportional to 21,414.36, 32,118.30 and 7,372.20 is: 11,057.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,414.36 : 32,118.30 = 7,372.20 : x
  2. Step 2: Convert to fraction form
    21,414.36/32,118.30 = 7,372.20/x
  3. Step 3: Cross multiply
    21,414.36x = 32,118.30 × 7,372.20
  4. Step 4: Simplify right side
    21,414.36x = 236,782,531.26
  5. Step 5: Solve for x
    x = 236,782,531.26/21,414.36
  6. Step 6: Final answer
    x = 11,057.18

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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.