Home / 20,944.66-28,903.72-11,513.83

Finding the Fourth Proportional to 20,944.66, 28,903.72 and 11,513.83

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Solution

The fourth proportional to 20,944.66, 28,903.72 and 11,513.83 is: 15,889.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.66 : 28,903.72 = 11,513.83 : x
  2. Step 2: Convert to fraction form
    20,944.66/28,903.72 = 11,513.83/x
  3. Step 3: Cross multiply
    20,944.66x = 28,903.72 × 11,513.83
  4. Step 4: Simplify right side
    20,944.66x = 332,792,373.93
  5. Step 5: Solve for x
    x = 332,792,373.93/20,944.66
  6. Step 6: Final answer
    x = 15,889.13

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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.