Home / 57,873.85-86,817.21-18,421.81

Finding the Fourth Proportional to 57,873.85, 86,817.21 and 18,421.81

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Solution

The fourth proportional to 57,873.85, 86,817.21 and 18,421.81 is: 27,634.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,873.85 : 86,817.21 = 18,421.81 : x
  2. Step 2: Convert to fraction form
    57,873.85/86,817.21 = 18,421.81/x
  3. Step 3: Cross multiply
    57,873.85x = 86,817.21 × 18,421.81
  4. Step 4: Simplify right side
    57,873.85x = 1,599,330,147.35
  5. Step 5: Solve for x
    x = 1,599,330,147.35/57,873.85
  6. Step 6: Final answer
    x = 27,634.76

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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.