Home / 21,768.10-32,649.24-9,909.09

Finding the Fourth Proportional to 21,768.10, 32,649.24 and 9,909.09

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Solution

The fourth proportional to 21,768.10, 32,649.24 and 9,909.09 is: 14,862.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,768.10 : 32,649.24 = 9,909.09 : x
  2. Step 2: Convert to fraction form
    21,768.10/32,649.24 = 9,909.09/x
  3. Step 3: Cross multiply
    21,768.10x = 32,649.24 × 9,909.09
  4. Step 4: Simplify right side
    21,768.10x = 323,524,257.59
  5. Step 5: Solve for x
    x = 323,524,257.59/21,768.10
  6. Step 6: Final answer
    x = 14,862.31

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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.