Home / 20,944.56-28,903.68-11,513.52

Finding the Fourth Proportional to 20,944.56, 28,903.68 and 11,513.52

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Solution

The fourth proportional to 20,944.56, 28,903.68 and 11,513.52 is: 15,888.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.56 : 28,903.68 = 11,513.52 : x
  2. Step 2: Convert to fraction form
    20,944.56/28,903.68 = 11,513.52/x
  3. Step 3: Cross multiply
    20,944.56x = 28,903.68 × 11,513.52
  4. Step 4: Simplify right side
    20,944.56x = 332,783,097.75
  5. Step 5: Solve for x
    x = 332,783,097.75/20,944.56
  6. Step 6: Final answer
    x = 15,888.76

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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.