Home / 20,246.78-30,367.40-5,456.59

Finding the Fourth Proportional to 20,246.78, 30,367.40 and 5,456.59

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Solution

The fourth proportional to 20,246.78, 30,367.40 and 5,456.59 is: 8,184.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246.78 : 30,367.40 = 5,456.59 : x
  2. Step 2: Convert to fraction form
    20,246.78/30,367.40 = 5,456.59/x
  3. Step 3: Cross multiply
    20,246.78x = 30,367.40 × 5,456.59
  4. Step 4: Simplify right side
    20,246.78x = 165,702,347.96
  5. Step 5: Solve for x
    x = 165,702,347.96/20,246.78
  6. Step 6: Final answer
    x = 8,184.13

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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.