Home / 21,939.96-32,901.12-7,897.44

Finding the Fourth Proportional to 21,939.96, 32,901.12 and 7,897.44

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Solution

The fourth proportional to 21,939.96, 32,901.12 and 7,897.44 is: 11,842.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,939.96 : 32,901.12 = 7,897.44 : x
  2. Step 2: Convert to fraction form
    21,939.96/32,901.12 = 7,897.44/x
  3. Step 3: Cross multiply
    21,939.96x = 32,901.12 × 7,897.44
  4. Step 4: Simplify right side
    21,939.96x = 259,834,621.13
  5. Step 5: Solve for x
    x = 259,834,621.13/21,939.96
  6. Step 6: Final answer
    x = 11,842.99

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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.