Home / 43,811.76-65,764.40-18,864.16

Finding the Fourth Proportional to 43,811.76, 65,764.40 and 18,864.16

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Solution

The fourth proportional to 43,811.76, 65,764.40 and 18,864.16 is: 28,316.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,811.76 : 65,764.40 = 18,864.16 : x
  2. Step 2: Convert to fraction form
    43,811.76/65,764.40 = 18,864.16/x
  3. Step 3: Cross multiply
    43,811.76x = 65,764.40 × 18,864.16
  4. Step 4: Simplify right side
    43,811.76x = 1,240,590,163.90
  5. Step 5: Solve for x
    x = 1,240,590,163.90/43,811.76
  6. Step 6: Final answer
    x = 28,316.37

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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.