Home / 43,329.40-65,018.12-21,142.96

Finding the Fourth Proportional to 43,329.40, 65,018.12 and 21,142.96

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Solution

The fourth proportional to 43,329.40, 65,018.12 and 21,142.96 is: 31,726.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,329.40 : 65,018.12 = 21,142.96 : x
  2. Step 2: Convert to fraction form
    43,329.40/65,018.12 = 21,142.96/x
  3. Step 3: Cross multiply
    43,329.40x = 65,018.12 × 21,142.96
  4. Step 4: Simplify right side
    43,329.40x = 1,374,675,242.18
  5. Step 5: Solve for x
    x = 1,374,675,242.18/43,329.40
  6. Step 6: Final answer
    x = 31,726.16

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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.