Home / 20,151.56-30,181.24-9,628.98

Finding the Fourth Proportional to 20,151.56, 30,181.24 and 9,628.98

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Solution

The fourth proportional to 20,151.56, 30,181.24 and 9,628.98 is: 14,421.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.56 : 30,181.24 = 9,628.98 : x
  2. Step 2: Convert to fraction form
    20,151.56/30,181.24 = 9,628.98/x
  3. Step 3: Cross multiply
    20,151.56x = 30,181.24 × 9,628.98
  4. Step 4: Simplify right side
    20,151.56x = 290,614,504.95
  5. Step 5: Solve for x
    x = 290,614,504.95/20,151.56
  6. Step 6: Final answer
    x = 14,421.44

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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.