Home / 20,801.75-31,202.54-9,702.27

Finding the Fourth Proportional to 20,801.75, 31,202.54 and 9,702.27

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Solution

The fourth proportional to 20,801.75, 31,202.54 and 9,702.27 is: 14,553.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801.75 : 31,202.54 = 9,702.27 : x
  2. Step 2: Convert to fraction form
    20,801.75/31,202.54 = 9,702.27/x
  3. Step 3: Cross multiply
    20,801.75x = 31,202.54 × 9,702.27
  4. Step 4: Simplify right side
    20,801.75x = 302,735,419.25
  5. Step 5: Solve for x
    x = 302,735,419.25/20,801.75
  6. Step 6: Final answer
    x = 14,553.37

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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.