Home / 43,509.12-65,263.73-11,919.46

Finding the Fourth Proportional to 43,509.12, 65,263.73 and 11,919.46

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Solution

The fourth proportional to 43,509.12, 65,263.73 and 11,919.46 is: 17,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,509.12 : 65,263.73 = 11,919.46 : x
  2. Step 2: Convert to fraction form
    43,509.12/65,263.73 = 11,919.46/x
  3. Step 3: Cross multiply
    43,509.12x = 65,263.73 × 11,919.46
  4. Step 4: Simplify right side
    43,509.12x = 777,908,092.87
  5. Step 5: Solve for x
    x = 777,908,092.87/43,509.12
  6. Step 6: Final answer
    x = 17,879.20

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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.