Home / 20,681.04-31,022.54-5,890.98

Finding the Fourth Proportional to 20,681.04, 31,022.54 and 5,890.98

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Solution

The fourth proportional to 20,681.04, 31,022.54 and 5,890.98 is: 8,836.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681.04 : 31,022.54 = 5,890.98 : x
  2. Step 2: Convert to fraction form
    20,681.04/31,022.54 = 5,890.98/x
  3. Step 3: Cross multiply
    20,681.04x = 31,022.54 × 5,890.98
  4. Step 4: Simplify right side
    20,681.04x = 182,753,162.69
  5. Step 5: Solve for x
    x = 182,753,162.69/20,681.04
  6. Step 6: Final answer
    x = 8,836.75

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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.