Home / 20,681.98-31,023.47-5,891.03

Finding the Fourth Proportional to 20,681.98, 31,023.47 and 5,891.03

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Solution

The fourth proportional to 20,681.98, 31,023.47 and 5,891.03 is: 8,836.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681.98 : 31,023.47 = 5,891.03 : x
  2. Step 2: Convert to fraction form
    20,681.98/31,023.47 = 5,891.03/x
  3. Step 3: Cross multiply
    20,681.98x = 31,023.47 × 5,891.03
  4. Step 4: Simplify right side
    20,681.98x = 182,760,037.36
  5. Step 5: Solve for x
    x = 182,760,037.36/20,681.98
  6. Step 6: Final answer
    x = 8,836.68

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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.