Home / 58,286.18-87,419.96-20,839.28

Finding the Fourth Proportional to 58,286.18, 87,419.96 and 20,839.28

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Solution

The fourth proportional to 58,286.18, 87,419.96 and 20,839.28 is: 31,255.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,286.18 : 87,419.96 = 20,839.28 : x
  2. Step 2: Convert to fraction form
    58,286.18/87,419.96 = 20,839.28/x
  3. Step 3: Cross multiply
    58,286.18x = 87,419.96 × 20,839.28
  4. Step 4: Simplify right side
    58,286.18x = 1,821,768,560.88
  5. Step 5: Solve for x
    x = 1,821,768,560.88/58,286.18
  6. Step 6: Final answer
    x = 31,255.58

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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.