Home / 20,184.48-30,272.40-8,494.56

Finding the Fourth Proportional to 20,184.48, 30,272.40 and 8,494.56

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Solution

The fourth proportional to 20,184.48, 30,272.40 and 8,494.56 is: 12,740.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,184.48 : 30,272.40 = 8,494.56 : x
  2. Step 2: Convert to fraction form
    20,184.48/30,272.40 = 8,494.56/x
  3. Step 3: Cross multiply
    20,184.48x = 30,272.40 × 8,494.56
  4. Step 4: Simplify right side
    20,184.48x = 257,150,718.14
  5. Step 5: Solve for x
    x = 257,150,718.14/20,184.48
  6. Step 6: Final answer
    x = 12,740.02

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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.