Home / 21,979.89-32,975.23-6,397.65

Finding the Fourth Proportional to 21,979.89, 32,975.23 and 6,397.65

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Solution

The fourth proportional to 21,979.89, 32,975.23 and 6,397.65 is: 9,598.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,979.89 : 32,975.23 = 6,397.65 : x
  2. Step 2: Convert to fraction form
    21,979.89/32,975.23 = 6,397.65/x
  3. Step 3: Cross multiply
    21,979.89x = 32,975.23 × 6,397.65
  4. Step 4: Simplify right side
    21,979.89x = 210,963,815.33
  5. Step 5: Solve for x
    x = 210,963,815.33/21,979.89
  6. Step 6: Final answer
    x = 9,598.04

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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.