Home / 21,611.22-32,397.39-7,750.50

Finding the Fourth Proportional to 21,611.22, 32,397.39 and 7,750.50

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Solution

The fourth proportional to 21,611.22, 32,397.39 and 7,750.50 is: 11,618.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,611.22 : 32,397.39 = 7,750.50 : x
  2. Step 2: Convert to fraction form
    21,611.22/32,397.39 = 7,750.50/x
  3. Step 3: Cross multiply
    21,611.22x = 32,397.39 × 7,750.50
  4. Step 4: Simplify right side
    21,611.22x = 251,095,971.20
  5. Step 5: Solve for x
    x = 251,095,971.20/21,611.22
  6. Step 6: Final answer
    x = 11,618.78

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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.