Home / 20,025.60-30,031.68-8,336.16

Finding the Fourth Proportional to 20,025.60, 30,031.68 and 8,336.16

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Solution

The fourth proportional to 20,025.60, 30,031.68 and 8,336.16 is: 12,501.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025.60 : 30,031.68 = 8,336.16 : x
  2. Step 2: Convert to fraction form
    20,025.60/30,031.68 = 8,336.16/x
  3. Step 3: Cross multiply
    20,025.60x = 30,031.68 × 8,336.16
  4. Step 4: Simplify right side
    20,025.60x = 250,348,889.55
  5. Step 5: Solve for x
    x = 250,348,889.55/20,025.60
  6. Step 6: Final answer
    x = 12,501.44

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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.