Home / 20,544.03-28,350.81-11,112.59

Finding the Fourth Proportional to 20,544.03, 28,350.81 and 11,112.59

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Solution

The fourth proportional to 20,544.03, 28,350.81 and 11,112.59 is: 15,335.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.03 : 28,350.81 = 11,112.59 : x
  2. Step 2: Convert to fraction form
    20,544.03/28,350.81 = 11,112.59/x
  3. Step 3: Cross multiply
    20,544.03x = 28,350.81 × 11,112.59
  4. Step 4: Simplify right side
    20,544.03x = 315,050,998.57
  5. Step 5: Solve for x
    x = 315,050,998.57/20,544.03
  6. Step 6: Final answer
    x = 15,335.40

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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.