Home / 20,951.48-31,415.58-9,694.52

Finding the Fourth Proportional to 20,951.48, 31,415.58 and 9,694.52

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Solution

The fourth proportional to 20,951.48, 31,415.58 and 9,694.52 is: 14,536.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,951.48 : 31,415.58 = 9,694.52 : x
  2. Step 2: Convert to fraction form
    20,951.48/31,415.58 = 9,694.52/x
  3. Step 3: Cross multiply
    20,951.48x = 31,415.58 × 9,694.52
  4. Step 4: Simplify right side
    20,951.48x = 304,558,968.62
  5. Step 5: Solve for x
    x = 304,558,968.62/20,951.48
  6. Step 6: Final answer
    x = 14,536.39

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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.