Home / 21,431.05-32,151.68-8,944.14

Finding the Fourth Proportional to 21,431.05, 32,151.68 and 8,944.14

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Solution

The fourth proportional to 21,431.05, 32,151.68 and 8,944.14 is: 13,418.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,431.05 : 32,151.68 = 8,944.14 : x
  2. Step 2: Convert to fraction form
    21,431.05/32,151.68 = 8,944.14/x
  3. Step 3: Cross multiply
    21,431.05x = 32,151.68 × 8,944.14
  4. Step 4: Simplify right side
    21,431.05x = 287,569,127.16
  5. Step 5: Solve for x
    x = 287,569,127.16/21,431.05
  6. Step 6: Final answer
    x = 13,418.34

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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.