Home / 31,639.22-43,654.87-18,889.92

Finding the Fourth Proportional to 31,639.22, 43,654.87 and 18,889.92

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Solution

The fourth proportional to 31,639.22, 43,654.87 and 18,889.92 is: 26,063.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,639.22 : 43,654.87 = 18,889.92 : x
  2. Step 2: Convert to fraction form
    31,639.22/43,654.87 = 18,889.92/x
  3. Step 3: Cross multiply
    31,639.22x = 43,654.87 × 18,889.92
  4. Step 4: Simplify right side
    31,639.22x = 824,637,001.91
  5. Step 5: Solve for x
    x = 824,637,001.91/31,639.22
  6. Step 6: Final answer
    x = 26,063.76

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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.