Home / 20,577.78-30,867.30-6,537.96

Finding the Fourth Proportional to 20,577.78, 30,867.30 and 6,537.96

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Solution

The fourth proportional to 20,577.78, 30,867.30 and 6,537.96 is: 9,807.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577.78 : 30,867.30 = 6,537.96 : x
  2. Step 2: Convert to fraction form
    20,577.78/30,867.30 = 6,537.96/x
  3. Step 3: Cross multiply
    20,577.78x = 30,867.30 × 6,537.96
  4. Step 4: Simplify right side
    20,577.78x = 201,809,172.71
  5. Step 5: Solve for x
    x = 201,809,172.71/20,577.78
  6. Step 6: Final answer
    x = 9,807.14

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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.