Home / 20,852.36-31,283.26-7,001

Finding the Fourth Proportional to 20,852.36, 31,283.26 and 7,001

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Solution

The fourth proportional to 20,852.36, 31,283.26 and 7,001 is: 10,503.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,852.36 : 31,283.26 = 7,001 : x
  2. Step 2: Convert to fraction form
    20,852.36/31,283.26 = 7,001/x
  3. Step 3: Cross multiply
    20,852.36x = 31,283.26 × 7,001
  4. Step 4: Simplify right side
    20,852.36x = 219,014,103.26
  5. Step 5: Solve for x
    x = 219,014,103.26/20,852.36
  6. Step 6: Final answer
    x = 10,503.08

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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.