Home / 41,211.10-61,821.48-13,121.32

Finding the Fourth Proportional to 41,211.10, 61,821.48 and 13,121.32

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Solution

The fourth proportional to 41,211.10, 61,821.48 and 13,121.32 is: 19,683.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,211.10 : 61,821.48 = 13,121.32 : x
  2. Step 2: Convert to fraction form
    41,211.10/61,821.48 = 13,121.32/x
  3. Step 3: Cross multiply
    41,211.10x = 61,821.48 × 13,121.32
  4. Step 4: Simplify right side
    41,211.10x = 811,179,421.95
  5. Step 5: Solve for x
    x = 811,179,421.95/41,211.10
  6. Step 6: Final answer
    x = 19,683.52

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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.