Home / 19,940.15-29,910.33-5,148.06

Finding the Fourth Proportional to 19,940.15, 29,910.33 and 5,148.06

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Solution

The fourth proportional to 19,940.15, 29,910.33 and 5,148.06 is: 7,722.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.15 : 29,910.33 = 5,148.06 : x
  2. Step 2: Convert to fraction form
    19,940.15/29,910.33 = 5,148.06/x
  3. Step 3: Cross multiply
    19,940.15x = 29,910.33 × 5,148.06
  4. Step 4: Simplify right side
    19,940.15x = 153,980,173.46
  5. Step 5: Solve for x
    x = 153,980,173.46/19,940.15
  6. Step 6: Final answer
    x = 7,722.12

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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.