Home / 21,340.25-31,994.53-10,236.37

Finding the Fourth Proportional to 21,340.25, 31,994.53 and 10,236.37

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Solution

The fourth proportional to 21,340.25, 31,994.53 and 10,236.37 is: 15,346.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,340.25 : 31,994.53 = 10,236.37 : x
  2. Step 2: Convert to fraction form
    21,340.25/31,994.53 = 10,236.37/x
  3. Step 3: Cross multiply
    21,340.25x = 31,994.53 × 10,236.37
  4. Step 4: Simplify right side
    21,340.25x = 327,507,741.48
  5. Step 5: Solve for x
    x = 327,507,741.48/21,340.25
  6. Step 6: Final answer
    x = 15,346.95

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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.