Home / 43,509.13-65,263.75-11,919.47

Finding the Fourth Proportional to 43,509.13, 65,263.75 and 11,919.47

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Solution

The fourth proportional to 43,509.13, 65,263.75 and 11,919.47 is: 17,879.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,509.13 : 65,263.75 = 11,919.47 : x
  2. Step 2: Convert to fraction form
    43,509.13/65,263.75 = 11,919.47/x
  3. Step 3: Cross multiply
    43,509.13x = 65,263.75 × 11,919.47
  4. Step 4: Simplify right side
    43,509.13x = 777,909,021.14
  5. Step 5: Solve for x
    x = 777,909,021.14/43,509.13
  6. Step 6: Final answer
    x = 17,879.21

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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.