Home / 20,882.64-31,320.72-6,090.02

Finding the Fourth Proportional to 20,882.64, 31,320.72 and 6,090.02

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Solution

The fourth proportional to 20,882.64, 31,320.72 and 6,090.02 is: 9,134.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,882.64 : 31,320.72 = 6,090.02 : x
  2. Step 2: Convert to fraction form
    20,882.64/31,320.72 = 6,090.02/x
  3. Step 3: Cross multiply
    20,882.64x = 31,320.72 × 6,090.02
  4. Step 4: Simplify right side
    20,882.64x = 190,743,654.61
  5. Step 5: Solve for x
    x = 190,743,654.61/20,882.64
  6. Step 6: Final answer
    x = 9,134.08

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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.