Home / 20,425.34-28,183.34-11,473.22

Finding the Fourth Proportional to 20,425.34, 28,183.34 and 11,473.22

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Solution

The fourth proportional to 20,425.34, 28,183.34 and 11,473.22 is: 15,831.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,425.34 : 28,183.34 = 11,473.22 : x
  2. Step 2: Convert to fraction form
    20,425.34/28,183.34 = 11,473.22/x
  3. Step 3: Cross multiply
    20,425.34x = 28,183.34 × 11,473.22
  4. Step 4: Simplify right side
    20,425.34x = 323,353,660.15
  5. Step 5: Solve for x
    x = 323,353,660.15/20,425.34
  6. Step 6: Final answer
    x = 15,831.01

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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.