Home / 23,057.76-31,814.64-13,621.44

Finding the Fourth Proportional to 23,057.76, 31,814.64 and 13,621.44

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Solution

The fourth proportional to 23,057.76, 31,814.64 and 13,621.44 is: 18,794.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,057.76 : 31,814.64 = 13,621.44 : x
  2. Step 2: Convert to fraction form
    23,057.76/31,814.64 = 13,621.44/x
  3. Step 3: Cross multiply
    23,057.76x = 31,814.64 × 13,621.44
  4. Step 4: Simplify right side
    23,057.76x = 433,361,209.88
  5. Step 5: Solve for x
    x = 433,361,209.88/23,057.76
  6. Step 6: Final answer
    x = 18,794.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.