Home / 20,270.95-30,406.43-9,177.39

Finding the Fourth Proportional to 20,270.95, 30,406.43 and 9,177.39

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Solution

The fourth proportional to 20,270.95, 30,406.43 and 9,177.39 is: 13,766.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,270.95 : 30,406.43 = 9,177.39 : x
  2. Step 2: Convert to fraction form
    20,270.95/30,406.43 = 9,177.39/x
  3. Step 3: Cross multiply
    20,270.95x = 30,406.43 × 9,177.39
  4. Step 4: Simplify right side
    20,270.95x = 279,051,620.73
  5. Step 5: Solve for x
    x = 279,051,620.73/20,270.95
  6. Step 6: Final answer
    x = 13,766.09

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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.