Home / 20,707.92-28,577.61-11,634.87

Finding the Fourth Proportional to 20,707.92, 28,577.61 and 11,634.87

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Solution

The fourth proportional to 20,707.92, 28,577.61 and 11,634.87 is: 16,056.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707.92 : 28,577.61 = 11,634.87 : x
  2. Step 2: Convert to fraction form
    20,707.92/28,577.61 = 11,634.87/x
  3. Step 3: Cross multiply
    20,707.92x = 28,577.61 × 11,634.87
  4. Step 4: Simplify right side
    20,707.92x = 332,496,777.26
  5. Step 5: Solve for x
    x = 332,496,777.26/20,707.92
  6. Step 6: Final answer
    x = 16,056.50

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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.