Home / 20,272.65-27,977.64-11,319.96

Finding the Fourth Proportional to 20,272.65, 27,977.64 and 11,319.96

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Solution

The fourth proportional to 20,272.65, 27,977.64 and 11,319.96 is: 15,622.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,272.65 : 27,977.64 = 11,319.96 : x
  2. Step 2: Convert to fraction form
    20,272.65/27,977.64 = 11,319.96/x
  3. Step 3: Cross multiply
    20,272.65x = 27,977.64 × 11,319.96
  4. Step 4: Simplify right side
    20,272.65x = 316,705,828.16
  5. Step 5: Solve for x
    x = 316,705,828.16/20,272.65
  6. Step 6: Final answer
    x = 15,622.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.