Home / 43,479.13-65,219.04-15,399.30

Finding the Fourth Proportional to 43,479.13, 65,219.04 and 15,399.30

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Solution

The fourth proportional to 43,479.13, 65,219.04 and 15,399.30 is: 23,099.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,479.13 : 65,219.04 = 15,399.30 : x
  2. Step 2: Convert to fraction form
    43,479.13/65,219.04 = 15,399.30/x
  3. Step 3: Cross multiply
    43,479.13x = 65,219.04 × 15,399.30
  4. Step 4: Simplify right side
    43,479.13x = 1,004,327,562.67
  5. Step 5: Solve for x
    x = 1,004,327,562.67/43,479.13
  6. Step 6: Final answer
    x = 23,099.07

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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.