Home / 20,179.95-30,273.17-7,699.47

Finding the Fourth Proportional to 20,179.95, 30,273.17 and 7,699.47

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Solution

The fourth proportional to 20,179.95, 30,273.17 and 7,699.47 is: 11,550.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.95 : 30,273.17 = 7,699.47 : x
  2. Step 2: Convert to fraction form
    20,179.95/30,273.17 = 7,699.47/x
  3. Step 3: Cross multiply
    20,179.95x = 30,273.17 × 7,699.47
  4. Step 4: Simplify right side
    20,179.95x = 233,087,325.72
  5. Step 5: Solve for x
    x = 233,087,325.72/20,179.95
  6. Step 6: Final answer
    x = 11,550.44

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1.5x scale

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.