Home / 31,869.19-43,977.08-17,720.83

Finding the Fourth Proportional to 31,869.19, 43,977.08 and 17,720.83

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Solution

The fourth proportional to 31,869.19, 43,977.08 and 17,720.83 is: 24,453.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,869.19 : 43,977.08 = 17,720.83 : x
  2. Step 2: Convert to fraction form
    31,869.19/43,977.08 = 17,720.83/x
  3. Step 3: Cross multiply
    31,869.19x = 43,977.08 × 17,720.83
  4. Step 4: Simplify right side
    31,869.19x = 779,310,269.97
  5. Step 5: Solve for x
    x = 779,310,269.97/31,869.19
  6. Step 6: Final answer
    x = 24,453.41

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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.