Home / 28,710.96-39,608.22-16,767.21

Finding the Fourth Proportional to 28,710.96, 39,608.22 and 16,767.21

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Solution

The fourth proportional to 28,710.96, 39,608.22 and 16,767.21 is: 23,131.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,710.96 : 39,608.22 = 16,767.21 : x
  2. Step 2: Convert to fraction form
    28,710.96/39,608.22 = 16,767.21/x
  3. Step 3: Cross multiply
    28,710.96x = 39,608.22 × 16,767.21
  4. Step 4: Simplify right side
    28,710.96x = 664,119,301.00
  5. Step 5: Solve for x
    x = 664,119,301.00/28,710.96
  6. Step 6: Final answer
    x = 23,131.21

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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.