Home / 22,451.76-31,005.72-18,486

Finding the Fourth Proportional to 22,451.76, 31,005.72 and 18,486

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Solution

The fourth proportional to 22,451.76, 31,005.72 and 18,486 is: 25,529.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,451.76 : 31,005.72 = 18,486 : x
  2. Step 2: Convert to fraction form
    22,451.76/31,005.72 = 18,486/x
  3. Step 3: Cross multiply
    22,451.76x = 31,005.72 × 18,486
  4. Step 4: Simplify right side
    22,451.76x = 573,171,739.92
  5. Step 5: Solve for x
    x = 573,171,739.92/22,451.76
  6. Step 6: Final answer
    x = 25,529.03

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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.