Home / 20,749.31-28,632.92-11,795.57

Finding the Fourth Proportional to 20,749.31, 28,632.92 and 11,795.57

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Solution

The fourth proportional to 20,749.31, 28,632.92 and 11,795.57 is: 16,277.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749.31 : 28,632.92 = 11,795.57 : x
  2. Step 2: Convert to fraction form
    20,749.31/28,632.92 = 11,795.57/x
  3. Step 3: Cross multiply
    20,749.31x = 28,632.92 × 11,795.57
  4. Step 4: Simplify right side
    20,749.31x = 337,741,410.02
  5. Step 5: Solve for x
    x = 337,741,410.02/20,749.31
  6. Step 6: Final answer
    x = 16,277.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.