Home / 21,073.29-31,599.26-7,028.39

Finding the Fourth Proportional to 21,073.29, 31,599.26 and 7,028.39

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Solution

The fourth proportional to 21,073.29, 31,599.26 and 7,028.39 is: 10,539.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073.29 : 31,599.26 = 7,028.39 : x
  2. Step 2: Convert to fraction form
    21,073.29/31,599.26 = 7,028.39/x
  3. Step 3: Cross multiply
    21,073.29x = 31,599.26 × 7,028.39
  4. Step 4: Simplify right side
    21,073.29x = 222,091,922.99
  5. Step 5: Solve for x
    x = 222,091,922.99/21,073.29
  6. Step 6: Final answer
    x = 10,539.02

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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.