Home / 43,403.68-65,083.98-13,817.66

Finding the Fourth Proportional to 43,403.68, 65,083.98 and 13,817.66

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Solution

The fourth proportional to 43,403.68, 65,083.98 and 13,817.66 is: 20,719.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,403.68 : 65,083.98 = 13,817.66 : x
  2. Step 2: Convert to fraction form
    43,403.68/65,083.98 = 13,817.66/x
  3. Step 3: Cross multiply
    43,403.68x = 65,083.98 × 13,817.66
  4. Step 4: Simplify right side
    43,403.68x = 899,308,307.09
  5. Step 5: Solve for x
    x = 899,308,307.09/43,403.68
  6. Step 6: Final answer
    x = 20,719.63

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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.