Home / 21,439.15-32,161.84-6,649.26

Finding the Fourth Proportional to 21,439.15, 32,161.84 and 6,649.26

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Solution

The fourth proportional to 21,439.15, 32,161.84 and 6,649.26 is: 9,974.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,439.15 : 32,161.84 = 6,649.26 : x
  2. Step 2: Convert to fraction form
    21,439.15/32,161.84 = 6,649.26/x
  3. Step 3: Cross multiply
    21,439.15x = 32,161.84 × 6,649.26
  4. Step 4: Simplify right side
    21,439.15x = 213,852,436.24
  5. Step 5: Solve for x
    x = 213,852,436.24/21,439.15
  6. Step 6: Final answer
    x = 9,974.86

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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.