Home / 20,441.28-30,636.27-8,740.74

Finding the Fourth Proportional to 20,441.28, 30,636.27 and 8,740.74

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Solution

The fourth proportional to 20,441.28, 30,636.27 and 8,740.74 is: 13,100.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,441.28 : 30,636.27 = 8,740.74 : x
  2. Step 2: Convert to fraction form
    20,441.28/30,636.27 = 8,740.74/x
  3. Step 3: Cross multiply
    20,441.28x = 30,636.27 × 8,740.74
  4. Step 4: Simplify right side
    20,441.28x = 267,783,670.64
  5. Step 5: Solve for x
    x = 267,783,670.64/20,441.28
  6. Step 6: Final answer
    x = 13,100.14

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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.