Home / 30,173.32-45,194.46-18,451

Finding the Fourth Proportional to 30,173.32, 45,194.46 and 18,451

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Solution

The fourth proportional to 30,173.32, 45,194.46 and 18,451 is: 27,636.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,173.32 : 45,194.46 = 18,451 : x
  2. Step 2: Convert to fraction form
    30,173.32/45,194.46 = 18,451/x
  3. Step 3: Cross multiply
    30,173.32x = 45,194.46 × 18,451
  4. Step 4: Simplify right side
    30,173.32x = 833,882,981.46
  5. Step 5: Solve for x
    x = 833,882,981.46/30,173.32
  6. Step 6: Final answer
    x = 27,636.43

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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.