Home / 20,267.37-30,366.18-18,213

Finding the Fourth Proportional to 20,267.37, 30,366.18 and 18,213

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Solution

The fourth proportional to 20,267.37, 30,366.18 and 18,213 is: 27,288.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,267.37 : 30,366.18 = 18,213 : x
  2. Step 2: Convert to fraction form
    20,267.37/30,366.18 = 18,213/x
  3. Step 3: Cross multiply
    20,267.37x = 30,366.18 × 18,213
  4. Step 4: Simplify right side
    20,267.37x = 553,059,236.34
  5. Step 5: Solve for x
    x = 553,059,236.34/20,267.37
  6. Step 6: Final answer
    x = 27,288.16

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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.