Home / 20,239.72-30,357.06-8,551.42

Finding the Fourth Proportional to 20,239.72, 30,357.06 and 8,551.42

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Solution

The fourth proportional to 20,239.72, 30,357.06 and 8,551.42 is: 12,826.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.72 : 30,357.06 = 8,551.42 : x
  2. Step 2: Convert to fraction form
    20,239.72/30,357.06 = 8,551.42/x
  3. Step 3: Cross multiply
    20,239.72x = 30,357.06 × 8,551.42
  4. Step 4: Simplify right side
    20,239.72x = 259,595,970.03
  5. Step 5: Solve for x
    x = 259,595,970.03/20,239.72
  6. Step 6: Final answer
    x = 12,826.07

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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.