Home / 20,212.36-30,324.54-10,358.56

Finding the Fourth Proportional to 20,212.36, 30,324.54 and 10,358.56

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Solution

The fourth proportional to 20,212.36, 30,324.54 and 10,358.56 is: 15,540.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.36 : 30,324.54 = 10,358.56 : x
  2. Step 2: Convert to fraction form
    20,212.36/30,324.54 = 10,358.56/x
  3. Step 3: Cross multiply
    20,212.36x = 30,324.54 × 10,358.56
  4. Step 4: Simplify right side
    20,212.36x = 314,118,567.06
  5. Step 5: Solve for x
    x = 314,118,567.06/20,212.36
  6. Step 6: Final answer
    x = 15,540.91

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1.5x scale

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.