Home / 20,858.72-31,282.24-10,467.68

Finding the Fourth Proportional to 20,858.72, 31,282.24 and 10,467.68

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Solution

The fourth proportional to 20,858.72, 31,282.24 and 10,467.68 is: 15,698.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,858.72 : 31,282.24 = 10,467.68 : x
  2. Step 2: Convert to fraction form
    20,858.72/31,282.24 = 10,467.68/x
  3. Step 3: Cross multiply
    20,858.72x = 31,282.24 × 10,467.68
  4. Step 4: Simplify right side
    20,858.72x = 327,452,478.00
  5. Step 5: Solve for x
    x = 327,452,478.00/20,858.72
  6. Step 6: Final answer
    x = 15,698.59

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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.