Home / 21,512.64-32,239.80-15,986.82

Finding the Fourth Proportional to 21,512.64, 32,239.80 and 15,986.82

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Solution

The fourth proportional to 21,512.64, 32,239.80 and 15,986.82 is: 23,958.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,512.64 : 32,239.80 = 15,986.82 : x
  2. Step 2: Convert to fraction form
    21,512.64/32,239.80 = 15,986.82/x
  3. Step 3: Cross multiply
    21,512.64x = 32,239.80 × 15,986.82
  4. Step 4: Simplify right side
    21,512.64x = 515,411,879.44
  5. Step 5: Solve for x
    x = 515,411,879.44/21,512.64
  6. Step 6: Final answer
    x = 23,958.56

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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.