Home / 21,232.44-31,850.58-8,749.56

Finding the Fourth Proportional to 21,232.44, 31,850.58 and 8,749.56

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Solution

The fourth proportional to 21,232.44, 31,850.58 and 8,749.56 is: 13,125.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.44 : 31,850.58 = 8,749.56 : x
  2. Step 2: Convert to fraction form
    21,232.44/31,850.58 = 8,749.56/x
  3. Step 3: Cross multiply
    21,232.44x = 31,850.58 × 8,749.56
  4. Step 4: Simplify right side
    21,232.44x = 278,678,560.74
  5. Step 5: Solve for x
    x = 278,678,560.74/21,232.44
  6. Step 6: Final answer
    x = 13,125.13

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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.