Home / 28,817.00-39,766.22-21,260.61

Finding the Fourth Proportional to 28,817.00, 39,766.22 and 21,260.61

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Solution

The fourth proportional to 28,817.00, 39,766.22 and 21,260.61 is: 29,338.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,817.00 : 39,766.22 = 21,260.61 : x
  2. Step 2: Convert to fraction form
    28,817.00/39,766.22 = 21,260.61/x
  3. Step 3: Cross multiply
    28,817.00x = 39,766.22 × 21,260.61
  4. Step 4: Simplify right side
    28,817.00x = 845,453,988.29
  5. Step 5: Solve for x
    x = 845,453,988.29/28,817.00
  6. Step 6: Final answer
    x = 29,338.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.