Home / 20,802.75-31,204.03-9,703.27

Finding the Fourth Proportional to 20,802.75, 31,204.03 and 9,703.27

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Solution

The fourth proportional to 20,802.75, 31,204.03 and 9,703.27 is: 14,554.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802.75 : 31,204.03 = 9,703.27 : x
  2. Step 2: Convert to fraction form
    20,802.75/31,204.03 = 9,703.27/x
  3. Step 3: Cross multiply
    20,802.75x = 31,204.03 × 9,703.27
  4. Step 4: Simplify right side
    20,802.75x = 302,781,128.18
  5. Step 5: Solve for x
    x = 302,781,128.18/20,802.75
  6. Step 6: Final answer
    x = 14,554.86

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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.