Home / 21,265.14-31,898.25-7,224.60

Finding the Fourth Proportional to 21,265.14, 31,898.25 and 7,224.60

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Solution

The fourth proportional to 21,265.14, 31,898.25 and 7,224.60 is: 10,837.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265.14 : 31,898.25 = 7,224.60 : x
  2. Step 2: Convert to fraction form
    21,265.14/31,898.25 = 7,224.60/x
  3. Step 3: Cross multiply
    21,265.14x = 31,898.25 × 7,224.60
  4. Step 4: Simplify right side
    21,265.14x = 230,452,096.95
  5. Step 5: Solve for x
    x = 230,452,096.95/21,265.14
  6. Step 6: Final answer
    x = 10,837.08

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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.