Home / 20,944.35-28,903.31-11,513.52

Finding the Fourth Proportional to 20,944.35, 28,903.31 and 11,513.52

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Solution

The fourth proportional to 20,944.35, 28,903.31 and 11,513.52 is: 15,888.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.35 : 28,903.31 = 11,513.52 : x
  2. Step 2: Convert to fraction form
    20,944.35/28,903.31 = 11,513.52/x
  3. Step 3: Cross multiply
    20,944.35x = 28,903.31 × 11,513.52
  4. Step 4: Simplify right side
    20,944.35x = 332,778,780.18
  5. Step 5: Solve for x
    x = 332,778,780.18/20,944.35
  6. Step 6: Final answer
    x = 15,888.71

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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.