Home / 20,377.52-30,559.97-9,840.99

Finding the Fourth Proportional to 20,377.52, 30,559.97 and 9,840.99

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Solution

The fourth proportional to 20,377.52, 30,559.97 and 9,840.99 is: 14,758.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,377.52 : 30,559.97 = 9,840.99 : x
  2. Step 2: Convert to fraction form
    20,377.52/30,559.97 = 9,840.99/x
  3. Step 3: Cross multiply
    20,377.52x = 30,559.97 × 9,840.99
  4. Step 4: Simplify right side
    20,377.52x = 300,740,309.97
  5. Step 5: Solve for x
    x = 300,740,309.97/20,377.52
  6. Step 6: Final answer
    x = 14,758.44

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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.