Home / 20,414.52-30,558.16-15,722.36

Finding the Fourth Proportional to 20,414.52, 30,558.16 and 15,722.36

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Solution

The fourth proportional to 20,414.52, 30,558.16 and 15,722.36 is: 23,534.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414.52 : 30,558.16 = 15,722.36 : x
  2. Step 2: Convert to fraction form
    20,414.52/30,558.16 = 15,722.36/x
  3. Step 3: Cross multiply
    20,414.52x = 30,558.16 × 15,722.36
  4. Step 4: Simplify right side
    20,414.52x = 480,446,392.46
  5. Step 5: Solve for x
    x = 480,446,392.46/20,414.52
  6. Step 6: Final answer
    x = 23,534.54

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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.