Home / 21,811.80-32,733.96-8,486.91

Finding the Fourth Proportional to 21,811.80, 32,733.96 and 8,486.91

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Solution

The fourth proportional to 21,811.80, 32,733.96 and 8,486.91 is: 12,736.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,811.80 : 32,733.96 = 8,486.91 : x
  2. Step 2: Convert to fraction form
    21,811.80/32,733.96 = 8,486.91/x
  3. Step 3: Cross multiply
    21,811.80x = 32,733.96 × 8,486.91
  4. Step 4: Simplify right side
    21,811.80x = 277,810,172.46
  5. Step 5: Solve for x
    x = 277,810,172.46/21,811.80
  6. Step 6: Final answer
    x = 12,736.69

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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.