Home / 26,511.75-39,768.15-21,222.21

Finding the Fourth Proportional to 26,511.75, 39,768.15 and 21,222.21

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Solution

The fourth proportional to 26,511.75, 39,768.15 and 21,222.21 is: 31,833.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,511.75 : 39,768.15 = 21,222.21 : x
  2. Step 2: Convert to fraction form
    26,511.75/39,768.15 = 21,222.21/x
  3. Step 3: Cross multiply
    26,511.75x = 39,768.15 × 21,222.21
  4. Step 4: Simplify right side
    26,511.75x = 843,968,030.61
  5. Step 5: Solve for x
    x = 843,968,030.61/26,511.75
  6. Step 6: Final answer
    x = 31,833.74

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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.