Home / 18,964.20-28,446.62-18,937

Finding the Fourth Proportional to 18,964.20, 28,446.62 and 18,937

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Solution

The fourth proportional to 18,964.20, 28,446.62 and 18,937 is: 28,405.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,964.20 : 28,446.62 = 18,937 : x
  2. Step 2: Convert to fraction form
    18,964.20/28,446.62 = 18,937/x
  3. Step 3: Cross multiply
    18,964.20x = 28,446.62 × 18,937
  4. Step 4: Simplify right side
    18,964.20x = 538,693,642.94
  5. Step 5: Solve for x
    x = 538,693,642.94/18,964.20
  6. Step 6: Final answer
    x = 28,405.82

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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.