Home / 20,693.25-31,028.94-9,000.09

Finding the Fourth Proportional to 20,693.25, 31,028.94 and 9,000.09

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Solution

The fourth proportional to 20,693.25, 31,028.94 and 9,000.09 is: 13,495.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693.25 : 31,028.94 = 9,000.09 : x
  2. Step 2: Convert to fraction form
    20,693.25/31,028.94 = 9,000.09/x
  3. Step 3: Cross multiply
    20,693.25x = 31,028.94 × 9,000.09
  4. Step 4: Simplify right side
    20,693.25x = 279,263,252.60
  5. Step 5: Solve for x
    x = 279,263,252.60/20,693.25
  6. Step 6: Final answer
    x = 13,495.38

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1.5x scale

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.