Home / 20,655.27-30,970.58-8,177.04

Finding the Fourth Proportional to 20,655.27, 30,970.58 and 8,177.04

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Solution

The fourth proportional to 20,655.27, 30,970.58 and 8,177.04 is: 12,260.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,655.27 : 30,970.58 = 8,177.04 : x
  2. Step 2: Convert to fraction form
    20,655.27/30,970.58 = 8,177.04/x
  3. Step 3: Cross multiply
    20,655.27x = 30,970.58 × 8,177.04
  4. Step 4: Simplify right side
    20,655.27x = 253,247,630.60
  5. Step 5: Solve for x
    x = 253,247,630.60/20,655.27
  6. Step 6: Final answer
    x = 12,260.68

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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.