Home / 18,755.06-28,107.98-13,801.51

Finding the Fourth Proportional to 18,755.06, 28,107.98 and 13,801.51

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Solution

The fourth proportional to 18,755.06, 28,107.98 and 13,801.51 is: 20,684.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,755.06 : 28,107.98 = 13,801.51 : x
  2. Step 2: Convert to fraction form
    18,755.06/28,107.98 = 13,801.51/x
  3. Step 3: Cross multiply
    18,755.06x = 28,107.98 × 13,801.51
  4. Step 4: Simplify right side
    18,755.06x = 387,932,567.05
  5. Step 5: Solve for x
    x = 387,932,567.05/18,755.06
  6. Step 6: Final answer
    x = 20,684.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.