Home / 21,934-32,897.36-7,891.18

Finding the Fourth Proportional to 21,934, 32,897.36 and 7,891.18

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Solution

The fourth proportional to 21,934, 32,897.36 and 7,891.18 is: 11,835.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,934 : 32,897.36 = 7,891.18 : x
  2. Step 2: Convert to fraction form
    21,934/32,897.36 = 7,891.18/x
  3. Step 3: Cross multiply
    21,934x = 32,897.36 × 7,891.18
  4. Step 4: Simplify right side
    21,934x = 259,598,989.28
  5. Step 5: Solve for x
    x = 259,598,989.28/21,934
  6. Step 6: Final answer
    x = 11,835.46

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1.5x scale

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.