Home / 28,801.77-39,747.29-16,863.99

Finding the Fourth Proportional to 28,801.77, 39,747.29 and 16,863.99

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Solution

The fourth proportional to 28,801.77, 39,747.29 and 16,863.99 is: 23,272.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,801.77 : 39,747.29 = 16,863.99 : x
  2. Step 2: Convert to fraction form
    28,801.77/39,747.29 = 16,863.99/x
  3. Step 3: Cross multiply
    28,801.77x = 39,747.29 × 16,863.99
  4. Step 4: Simplify right side
    28,801.77x = 670,297,816.77
  5. Step 5: Solve for x
    x = 670,297,816.77/28,801.77
  6. Step 6: Final answer
    x = 23,272.80

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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.