Home / 28,636.08-42,903.30-11,959.42

Finding the Fourth Proportional to 28,636.08, 42,903.30 and 11,959.42

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Solution

The fourth proportional to 28,636.08, 42,903.30 and 11,959.42 is: 17,917.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,636.08 : 42,903.30 = 11,959.42 : x
  2. Step 2: Convert to fraction form
    28,636.08/42,903.30 = 11,959.42/x
  3. Step 3: Cross multiply
    28,636.08x = 42,903.30 × 11,959.42
  4. Step 4: Simplify right side
    28,636.08x = 513,098,584.09
  5. Step 5: Solve for x
    x = 513,098,584.09/28,636.08
  6. Step 6: Final answer
    x = 17,917.91

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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.