Home / 28,860.22-43,272.81-11,309.02

Finding the Fourth Proportional to 28,860.22, 43,272.81 and 11,309.02

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Solution

The fourth proportional to 28,860.22, 43,272.81 and 11,309.02 is: 16,956.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860.22 : 43,272.81 = 11,309.02 : x
  2. Step 2: Convert to fraction form
    28,860.22/43,272.81 = 11,309.02/x
  3. Step 3: Cross multiply
    28,860.22x = 43,272.81 × 11,309.02
  4. Step 4: Simplify right side
    28,860.22x = 489,373,073.75
  5. Step 5: Solve for x
    x = 489,373,073.75/28,860.22
  6. Step 6: Final answer
    x = 16,956.66

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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.