Home / 20,560.82-28,373.81-11,608.25

Finding the Fourth Proportional to 20,560.82, 28,373.81 and 11,608.25

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Solution

The fourth proportional to 20,560.82, 28,373.81 and 11,608.25 is: 16,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.82 : 28,373.81 = 11,608.25 : x
  2. Step 2: Convert to fraction form
    20,560.82/28,373.81 = 11,608.25/x
  3. Step 3: Cross multiply
    20,560.82x = 28,373.81 × 11,608.25
  4. Step 4: Simplify right side
    20,560.82x = 329,370,080.02
  5. Step 5: Solve for x
    x = 329,370,080.02/20,560.82
  6. Step 6: Final answer
    x = 16,019.31

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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.