Home / 18,968.65-28,451.89-5,821.00

Finding the Fourth Proportional to 18,968.65, 28,451.89 and 5,821.00

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Solution

The fourth proportional to 18,968.65, 28,451.89 and 5,821.00 is: 8,731.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968.65 : 28,451.89 = 5,821.00 : x
  2. Step 2: Convert to fraction form
    18,968.65/28,451.89 = 5,821.00/x
  3. Step 3: Cross multiply
    18,968.65x = 28,451.89 × 5,821.00
  4. Step 4: Simplify right side
    18,968.65x = 165,618,387.84
  5. Step 5: Solve for x
    x = 165,618,387.84/18,968.65
  6. Step 6: Final answer
    x = 8,731.16

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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.