Home / 43,350.48-65,018.16-13,761.72

Finding the Fourth Proportional to 43,350.48, 65,018.16 and 13,761.72

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Solution

The fourth proportional to 43,350.48, 65,018.16 and 13,761.72 is: 20,640.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,350.48 : 65,018.16 = 13,761.72 : x
  2. Step 2: Convert to fraction form
    43,350.48/65,018.16 = 13,761.72/x
  3. Step 3: Cross multiply
    43,350.48x = 65,018.16 × 13,761.72
  4. Step 4: Simplify right side
    43,350.48x = 894,761,712.84
  5. Step 5: Solve for x
    x = 894,761,712.84/43,350.48
  6. Step 6: Final answer
    x = 20,640.18

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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.