Home / 31,878.05-43,990.82-17,537.81

Finding the Fourth Proportional to 31,878.05, 43,990.82 and 17,537.81

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Solution

The fourth proportional to 31,878.05, 43,990.82 and 17,537.81 is: 24,201.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,878.05 : 43,990.82 = 17,537.81 : x
  2. Step 2: Convert to fraction form
    31,878.05/43,990.82 = 17,537.81/x
  3. Step 3: Cross multiply
    31,878.05x = 43,990.82 × 17,537.81
  4. Step 4: Simplify right side
    31,878.05x = 771,502,574.08
  5. Step 5: Solve for x
    x = 771,502,574.08/31,878.05
  6. Step 6: Final answer
    x = 24,201.69

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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.