Home / 28,699.48-39,608.34-16,766.69

Finding the Fourth Proportional to 28,699.48, 39,608.34 and 16,766.69

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Solution

The fourth proportional to 28,699.48, 39,608.34 and 16,766.69 is: 23,139.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.48 : 39,608.34 = 16,766.69 : x
  2. Step 2: Convert to fraction form
    28,699.48/39,608.34 = 16,766.69/x
  3. Step 3: Cross multiply
    28,699.48x = 39,608.34 × 16,766.69
  4. Step 4: Simplify right side
    28,699.48x = 664,100,758.19
  5. Step 5: Solve for x
    x = 664,100,758.19/28,699.48
  6. Step 6: Final answer
    x = 23,139.82

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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.