Home / 38,634.57-57,989.22-18,658.07

Finding the Fourth Proportional to 38,634.57, 57,989.22 and 18,658.07

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Solution

The fourth proportional to 38,634.57, 57,989.22 and 18,658.07 is: 28,005.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,634.57 : 57,989.22 = 18,658.07 : x
  2. Step 2: Convert to fraction form
    38,634.57/57,989.22 = 18,658.07/x
  3. Step 3: Cross multiply
    38,634.57x = 57,989.22 × 18,658.07
  4. Step 4: Simplify right side
    38,634.57x = 1,081,966,636.06
  5. Step 5: Solve for x
    x = 1,081,966,636.06/38,634.57
  6. Step 6: Final answer
    x = 28,005.14

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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.