Home / 15,422.28-23,129.87-4,890.34

Finding the Fourth Proportional to 15,422.28, 23,129.87 and 4,890.34

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Solution

The fourth proportional to 15,422.28, 23,129.87 and 4,890.34 is: 7,334.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422.28 : 23,129.87 = 4,890.34 : x
  2. Step 2: Convert to fraction form
    15,422.28/23,129.87 = 4,890.34/x
  3. Step 3: Cross multiply
    15,422.28x = 23,129.87 × 4,890.34
  4. Step 4: Simplify right side
    15,422.28x = 113,112,932.92
  5. Step 5: Solve for x
    x = 113,112,932.92/15,422.28
  6. Step 6: Final answer
    x = 7,334.39

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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.