Home / 41,215.87-61,828.35-13,129.39

Finding the Fourth Proportional to 41,215.87, 61,828.35 and 13,129.39

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Solution

The fourth proportional to 41,215.87, 61,828.35 and 13,129.39 is: 19,695.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,215.87 : 61,828.35 = 13,129.39 : x
  2. Step 2: Convert to fraction form
    41,215.87/61,828.35 = 13,129.39/x
  3. Step 3: Cross multiply
    41,215.87x = 61,828.35 × 13,129.39
  4. Step 4: Simplify right side
    41,215.87x = 811,768,520.21
  5. Step 5: Solve for x
    x = 811,768,520.21/41,215.87
  6. Step 6: Final answer
    x = 19,695.53

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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.