Home / 43,345.35-65,018.03-21,162.15

Finding the Fourth Proportional to 43,345.35, 65,018.03 and 21,162.15

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Solution

The fourth proportional to 43,345.35, 65,018.03 and 21,162.15 is: 31,743.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,345.35 : 65,018.03 = 21,162.15 : x
  2. Step 2: Convert to fraction form
    43,345.35/65,018.03 = 21,162.15/x
  3. Step 3: Cross multiply
    43,345.35x = 65,018.03 × 21,162.15
  4. Step 4: Simplify right side
    43,345.35x = 1,375,921,197.75
  5. Step 5: Solve for x
    x = 1,375,921,197.75/43,345.35
  6. Step 6: Final answer
    x = 31,743.23

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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.