Home / 28,836.39-43,278.90-11,318.52

Finding the Fourth Proportional to 28,836.39, 43,278.90 and 11,318.52

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Solution

The fourth proportional to 28,836.39, 43,278.90 and 11,318.52 is: 16,987.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836.39 : 43,278.90 = 11,318.52 : x
  2. Step 2: Convert to fraction form
    28,836.39/43,278.90 = 11,318.52/x
  3. Step 3: Cross multiply
    28,836.39x = 43,278.90 × 11,318.52
  4. Step 4: Simplify right side
    28,836.39x = 489,853,095.23
  5. Step 5: Solve for x
    x = 489,853,095.23/28,836.39
  6. Step 6: Final answer
    x = 16,987.32

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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.