Home / 20,544.11-30,800.03-8,688.18

Finding the Fourth Proportional to 20,544.11, 30,800.03 and 8,688.18

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Solution

The fourth proportional to 20,544.11, 30,800.03 and 8,688.18 is: 13,025.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.11 : 30,800.03 = 8,688.18 : x
  2. Step 2: Convert to fraction form
    20,544.11/30,800.03 = 8,688.18/x
  3. Step 3: Cross multiply
    20,544.11x = 30,800.03 × 8,688.18
  4. Step 4: Simplify right side
    20,544.11x = 267,596,161.20
  5. Step 5: Solve for x
    x = 267,596,161.20/20,544.11
  6. Step 6: Final answer
    x = 13,025.45

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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.