Home / 28,767.25-39,689.30-16,822.13

Finding the Fourth Proportional to 28,767.25, 39,689.30 and 16,822.13

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Solution

The fourth proportional to 28,767.25, 39,689.30 and 16,822.13 is: 23,208.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,767.25 : 39,689.30 = 16,822.13 : x
  2. Step 2: Convert to fraction form
    28,767.25/39,689.30 = 16,822.13/x
  3. Step 3: Cross multiply
    28,767.25x = 39,689.30 × 16,822.13
  4. Step 4: Simplify right side
    28,767.25x = 667,658,480.10
  5. Step 5: Solve for x
    x = 667,658,480.10/28,767.25
  6. Step 6: Final answer
    x = 23,208.98

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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.