Home / 28,725.89-39,625.52-16,786.71

Finding the Fourth Proportional to 28,725.89, 39,625.52 and 16,786.71

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Solution

The fourth proportional to 28,725.89, 39,625.52 and 16,786.71 is: 23,156.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.89 : 39,625.52 = 16,786.71 : x
  2. Step 2: Convert to fraction form
    28,725.89/39,625.52 = 16,786.71/x
  3. Step 3: Cross multiply
    28,725.89x = 39,625.52 × 16,786.71
  4. Step 4: Simplify right side
    28,725.89x = 665,182,028.91
  5. Step 5: Solve for x
    x = 665,182,028.91/28,725.89
  6. Step 6: Final answer
    x = 23,156.19

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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.