Home / 43,499.78-65,257.87-13,909.67

Finding the Fourth Proportional to 43,499.78, 65,257.87 and 13,909.67

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Solution

The fourth proportional to 43,499.78, 65,257.87 and 13,909.67 is: 20,867.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,499.78 : 65,257.87 = 13,909.67 : x
  2. Step 2: Convert to fraction form
    43,499.78/65,257.87 = 13,909.67/x
  3. Step 3: Cross multiply
    43,499.78x = 65,257.87 × 13,909.67
  4. Step 4: Simplify right side
    43,499.78x = 907,715,436.60
  5. Step 5: Solve for x
    x = 907,715,436.60/43,499.78
  6. Step 6: Final answer
    x = 20,867.13

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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.