Home / 31,388.52-46,965.12-18,691.83

Finding the Fourth Proportional to 31,388.52, 46,965.12 and 18,691.83

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Solution

The fourth proportional to 31,388.52, 46,965.12 and 18,691.83 is: 27,967.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,388.52 : 46,965.12 = 18,691.83 : x
  2. Step 2: Convert to fraction form
    31,388.52/46,965.12 = 18,691.83/x
  3. Step 3: Cross multiply
    31,388.52x = 46,965.12 × 18,691.83
  4. Step 4: Simplify right side
    31,388.52x = 877,864,038.97
  5. Step 5: Solve for x
    x = 877,864,038.97/31,388.52
  6. Step 6: Final answer
    x = 27,967.68

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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.