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Finding the Fourth Proportional to 20,068.54, 30,102.88 and 6,741.15

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Solution

The fourth proportional to 20,068.54, 30,102.88 and 6,741.15 is: 10,111.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.54 : 30,102.88 = 6,741.15 : x
  2. Step 2: Convert to fraction form
    20,068.54/30,102.88 = 6,741.15/x
  3. Step 3: Cross multiply
    20,068.54x = 30,102.88 × 6,741.15
  4. Step 4: Simplify right side
    20,068.54x = 202,928,185.37
  5. Step 5: Solve for x
    x = 202,928,185.37/20,068.54
  6. Step 6: Final answer
    x = 10,111.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.