Home / 43,976.40-65,945.16-12,814.08

Finding the Fourth Proportional to 43,976.40, 65,945.16 and 12,814.08

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Solution

The fourth proportional to 43,976.40, 65,945.16 and 12,814.08 is: 19,215.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,976.40 : 65,945.16 = 12,814.08 : x
  2. Step 2: Convert to fraction form
    43,976.40/65,945.16 = 12,814.08/x
  3. Step 3: Cross multiply
    43,976.40x = 65,945.16 × 12,814.08
  4. Step 4: Simplify right side
    43,976.40x = 845,026,555.85
  5. Step 5: Solve for x
    x = 845,026,555.85/43,976.40
  6. Step 6: Final answer
    x = 19,215.46

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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.