Home / 40,200.28-55,478.46-30,247

Finding the Fourth Proportional to 40,200.28, 55,478.46 and 30,247

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Solution

The fourth proportional to 40,200.28, 55,478.46 and 30,247 is: 41,742.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,200.28 : 55,478.46 = 30,247 : x
  2. Step 2: Convert to fraction form
    40,200.28/55,478.46 = 30,247/x
  3. Step 3: Cross multiply
    40,200.28x = 55,478.46 × 30,247
  4. Step 4: Simplify right side
    40,200.28x = 1,678,056,979.62
  5. Step 5: Solve for x
    x = 1,678,056,979.62/40,200.28
  6. Step 6: Final answer
    x = 41,742.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.