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Finding the Fourth Proportional to 20,028.64, 30,032.81 and 6,696.89

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Solution

The fourth proportional to 20,028.64, 30,032.81 and 6,696.89 is: 10,041.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.64 : 30,032.81 = 6,696.89 : x
  2. Step 2: Convert to fraction form
    20,028.64/30,032.81 = 6,696.89/x
  3. Step 3: Cross multiply
    20,028.64x = 30,032.81 × 6,696.89
  4. Step 4: Simplify right side
    20,028.64x = 201,126,424.96
  5. Step 5: Solve for x
    x = 201,126,424.96/20,028.64
  6. Step 6: Final answer
    x = 10,041.94

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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.