Home / 21,305.47-31,958.30-6,514.33

Finding the Fourth Proportional to 21,305.47, 31,958.30 and 6,514.33

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Solution

The fourth proportional to 21,305.47, 31,958.30 and 6,514.33 is: 9,771.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,305.47 : 31,958.30 = 6,514.33 : x
  2. Step 2: Convert to fraction form
    21,305.47/31,958.30 = 6,514.33/x
  3. Step 3: Cross multiply
    21,305.47x = 31,958.30 × 6,514.33
  4. Step 4: Simplify right side
    21,305.47x = 208,186,912.44
  5. Step 5: Solve for x
    x = 208,186,912.44/21,305.47
  6. Step 6: Final answer
    x = 9,771.52

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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.