Home / 21,716.30-32,555.60-8,565.44

Finding the Fourth Proportional to 21,716.30, 32,555.60 and 8,565.44

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Solution

The fourth proportional to 21,716.30, 32,555.60 and 8,565.44 is: 12,840.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,716.30 : 32,555.60 = 8,565.44 : x
  2. Step 2: Convert to fraction form
    21,716.30/32,555.60 = 8,565.44/x
  3. Step 3: Cross multiply
    21,716.30x = 32,555.60 × 8,565.44
  4. Step 4: Simplify right side
    21,716.30x = 278,852,995.64
  5. Step 5: Solve for x
    x = 278,852,995.64/21,716.30
  6. Step 6: Final answer
    x = 12,840.73

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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.