Home / 18,960.96-28,297.26-16,859.15

Finding the Fourth Proportional to 18,960.96, 28,297.26 and 16,859.15

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Solution

The fourth proportional to 18,960.96, 28,297.26 and 16,859.15 is: 25,160.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,960.96 : 28,297.26 = 16,859.15 : x
  2. Step 2: Convert to fraction form
    18,960.96/28,297.26 = 16,859.15/x
  3. Step 3: Cross multiply
    18,960.96x = 28,297.26 × 16,859.15
  4. Step 4: Simplify right side
    18,960.96x = 477,067,779.06
  5. Step 5: Solve for x
    x = 477,067,779.06/18,960.96
  6. Step 6: Final answer
    x = 25,160.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.