Home / 43,328.14-65,016.24-21,141.70

Finding the Fourth Proportional to 43,328.14, 65,016.24 and 21,141.70

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Solution

The fourth proportional to 43,328.14, 65,016.24 and 21,141.70 is: 31,724.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,328.14 : 65,016.24 = 21,141.70 : x
  2. Step 2: Convert to fraction form
    43,328.14/65,016.24 = 21,141.70/x
  3. Step 3: Cross multiply
    43,328.14x = 65,016.24 × 21,141.70
  4. Step 4: Simplify right side
    43,328.14x = 1,374,553,841.21
  5. Step 5: Solve for x
    x = 1,374,553,841.21/43,328.14
  6. Step 6: Final answer
    x = 31,724.28

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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.