Home / 20,428.36-30,641.82-6,577

Finding the Fourth Proportional to 20,428.36, 30,641.82 and 6,577

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Solution

The fourth proportional to 20,428.36, 30,641.82 and 6,577 is: 9,865.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,428.36 : 30,641.82 = 6,577 : x
  2. Step 2: Convert to fraction form
    20,428.36/30,641.82 = 6,577/x
  3. Step 3: Cross multiply
    20,428.36x = 30,641.82 × 6,577
  4. Step 4: Simplify right side
    20,428.36x = 201,531,250.14
  5. Step 5: Solve for x
    x = 201,531,250.14/20,428.36
  6. Step 6: Final answer
    x = 9,865.27

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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.