Home / 38,717.04-53,429.68-21,950

Finding the Fourth Proportional to 38,717.04, 53,429.68 and 21,950

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Solution

The fourth proportional to 38,717.04, 53,429.68 and 21,950 is: 30,291.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,717.04 : 53,429.68 = 21,950 : x
  2. Step 2: Convert to fraction form
    38,717.04/53,429.68 = 21,950/x
  3. Step 3: Cross multiply
    38,717.04x = 53,429.68 × 21,950
  4. Step 4: Simplify right side
    38,717.04x = 1,172,781,476
  5. Step 5: Solve for x
    x = 1,172,781,476/38,717.04
  6. Step 6: Final answer
    x = 30,291.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.