Home / 31,269.30-43,171.29-19,339.35

Finding the Fourth Proportional to 31,269.30, 43,171.29 and 19,339.35

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Solution

The fourth proportional to 31,269.30, 43,171.29 and 19,339.35 is: 26,700.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,269.30 : 43,171.29 = 19,339.35 : x
  2. Step 2: Convert to fraction form
    31,269.30/43,171.29 = 19,339.35/x
  3. Step 3: Cross multiply
    31,269.30x = 43,171.29 × 19,339.35
  4. Step 4: Simplify right side
    31,269.30x = 834,904,687.26
  5. Step 5: Solve for x
    x = 834,904,687.26/31,269.30
  6. Step 6: Final answer
    x = 26,700.46

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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.