Home / 21,559.68-32,339.12-11,761.34

Finding the Fourth Proportional to 21,559.68, 32,339.12 and 11,761.34

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Solution

The fourth proportional to 21,559.68, 32,339.12 and 11,761.34 is: 17,641.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,559.68 : 32,339.12 = 11,761.34 : x
  2. Step 2: Convert to fraction form
    21,559.68/32,339.12 = 11,761.34/x
  3. Step 3: Cross multiply
    21,559.68x = 32,339.12 × 11,761.34
  4. Step 4: Simplify right side
    21,559.68x = 380,351,165.12
  5. Step 5: Solve for x
    x = 380,351,165.12/21,559.68
  6. Step 6: Final answer
    x = 17,641.78

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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.