Home / 28,836.78-43,251.45-9,117.33

Finding the Fourth Proportional to 28,836.78, 43,251.45 and 9,117.33

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Solution

The fourth proportional to 28,836.78, 43,251.45 and 9,117.33 is: 13,674.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836.78 : 43,251.45 = 9,117.33 : x
  2. Step 2: Convert to fraction form
    28,836.78/43,251.45 = 9,117.33/x
  3. Step 3: Cross multiply
    28,836.78x = 43,251.45 × 9,117.33
  4. Step 4: Simplify right side
    28,836.78x = 394,337,742.63
  5. Step 5: Solve for x
    x = 394,337,742.63/28,836.78
  6. Step 6: Final answer
    x = 13,674.82

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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.