Home / 20,665.02-30,999.35-6,625.69

Finding the Fourth Proportional to 20,665.02, 30,999.35 and 6,625.69

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Solution

The fourth proportional to 20,665.02, 30,999.35 and 6,625.69 is: 9,939.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,665.02 : 30,999.35 = 6,625.69 : x
  2. Step 2: Convert to fraction form
    20,665.02/30,999.35 = 6,625.69/x
  3. Step 3: Cross multiply
    20,665.02x = 30,999.35 × 6,625.69
  4. Step 4: Simplify right side
    20,665.02x = 205,392,083.30
  5. Step 5: Solve for x
    x = 205,392,083.30/20,665.02
  6. Step 6: Final answer
    x = 9,939.12

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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.