Home / 21,094.62-31,646.73-11,228.70

Finding the Fourth Proportional to 21,094.62, 31,646.73 and 11,228.70

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Solution

The fourth proportional to 21,094.62, 31,646.73 and 11,228.70 is: 16,845.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,094.62 : 31,646.73 = 11,228.70 : x
  2. Step 2: Convert to fraction form
    21,094.62/31,646.73 = 11,228.70/x
  3. Step 3: Cross multiply
    21,094.62x = 31,646.73 × 11,228.70
  4. Step 4: Simplify right side
    21,094.62x = 355,351,637.15
  5. Step 5: Solve for x
    x = 355,351,637.15/21,094.62
  6. Step 6: Final answer
    x = 16,845.61

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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.