Home / 21,985.71-32,982.63-7,195.47

Finding the Fourth Proportional to 21,985.71, 32,982.63 and 7,195.47

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Solution

The fourth proportional to 21,985.71, 32,982.63 and 7,195.47 is: 10,794.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,985.71 : 32,982.63 = 7,195.47 : x
  2. Step 2: Convert to fraction form
    21,985.71/32,982.63 = 7,195.47/x
  3. Step 3: Cross multiply
    21,985.71x = 32,982.63 × 7,195.47
  4. Step 4: Simplify right side
    21,985.71x = 237,325,524.69
  5. Step 5: Solve for x
    x = 237,325,524.69/21,985.71
  6. Step 6: Final answer
    x = 10,794.54

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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.