Home / 20,133.60-30,200.39-6,282.60

Finding the Fourth Proportional to 20,133.60, 30,200.39 and 6,282.60

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Solution

The fourth proportional to 20,133.60, 30,200.39 and 6,282.60 is: 9,423.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.60 : 30,200.39 = 6,282.60 : x
  2. Step 2: Convert to fraction form
    20,133.60/30,200.39 = 6,282.60/x
  3. Step 3: Cross multiply
    20,133.60x = 30,200.39 × 6,282.60
  4. Step 4: Simplify right side
    20,133.60x = 189,736,970.21
  5. Step 5: Solve for x
    x = 189,736,970.21/20,133.60
  6. Step 6: Final answer
    x = 9,423.90

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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.