Home / 43,511.13-65,266.75-11,921.46

Finding the Fourth Proportional to 43,511.13, 65,266.75 and 11,921.46

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Solution

The fourth proportional to 43,511.13, 65,266.75 and 11,921.46 is: 17,882.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,511.13 : 65,266.75 = 11,921.46 : x
  2. Step 2: Convert to fraction form
    43,511.13/65,266.75 = 11,921.46/x
  3. Step 3: Cross multiply
    43,511.13x = 65,266.75 × 11,921.46
  4. Step 4: Simplify right side
    43,511.13x = 778,075,112.62
  5. Step 5: Solve for x
    x = 778,075,112.62/43,511.13
  6. Step 6: Final answer
    x = 17,882.21

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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.