Home / 19,147.21-28,691.55-8,047.84

Finding the Fourth Proportional to 19,147.21, 28,691.55 and 8,047.84

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Solution

The fourth proportional to 19,147.21, 28,691.55 and 8,047.84 is: 12,059.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,147.21 : 28,691.55 = 8,047.84 : x
  2. Step 2: Convert to fraction form
    19,147.21/28,691.55 = 8,047.84/x
  3. Step 3: Cross multiply
    19,147.21x = 28,691.55 × 8,047.84
  4. Step 4: Simplify right side
    19,147.21x = 230,905,003.75
  5. Step 5: Solve for x
    x = 230,905,003.75/19,147.21
  6. Step 6: Final answer
    x = 12,059.46

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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.