Home / 20,102.82-27,741.47-12,444.05

Finding the Fourth Proportional to 20,102.82, 27,741.47 and 12,444.05

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Solution

The fourth proportional to 20,102.82, 27,741.47 and 12,444.05 is: 17,172.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102.82 : 27,741.47 = 12,444.05 : x
  2. Step 2: Convert to fraction form
    20,102.82/27,741.47 = 12,444.05/x
  3. Step 3: Cross multiply
    20,102.82x = 27,741.47 × 12,444.05
  4. Step 4: Simplify right side
    20,102.82x = 345,216,246.89
  5. Step 5: Solve for x
    x = 345,216,246.89/20,102.82
  6. Step 6: Final answer
    x = 17,172.53

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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.