Home / 43,945.92-65,917.80-12,358.08

Finding the Fourth Proportional to 43,945.92, 65,917.80 and 12,358.08

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Solution

The fourth proportional to 43,945.92, 65,917.80 and 12,358.08 is: 18,536.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,945.92 : 65,917.80 = 12,358.08 : x
  2. Step 2: Convert to fraction form
    43,945.92/65,917.80 = 12,358.08/x
  3. Step 3: Cross multiply
    43,945.92x = 65,917.80 × 12,358.08
  4. Step 4: Simplify right side
    43,945.92x = 814,617,445.82
  5. Step 5: Solve for x
    x = 814,617,445.82/43,945.92
  6. Step 6: Final answer
    x = 18,536.82

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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.