Home / 20,205.60-30,308.40-6,352.80

Finding the Fourth Proportional to 20,205.60, 30,308.40 and 6,352.80

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Solution

The fourth proportional to 20,205.60, 30,308.40 and 6,352.80 is: 9,529.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.60 : 30,308.40 = 6,352.80 : x
  2. Step 2: Convert to fraction form
    20,205.60/30,308.40 = 6,352.80/x
  3. Step 3: Cross multiply
    20,205.60x = 30,308.40 × 6,352.80
  4. Step 4: Simplify right side
    20,205.60x = 192,543,203.52
  5. Step 5: Solve for x
    x = 192,543,203.52/20,205.60
  6. Step 6: Final answer
    x = 9,529.20

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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.