Home / 21,740.26-32,609.33-12,739.38

Finding the Fourth Proportional to 21,740.26, 32,609.33 and 12,739.38

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Solution

The fourth proportional to 21,740.26, 32,609.33 and 12,739.38 is: 19,108.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,740.26 : 32,609.33 = 12,739.38 : x
  2. Step 2: Convert to fraction form
    21,740.26/32,609.33 = 12,739.38/x
  3. Step 3: Cross multiply
    21,740.26x = 32,609.33 × 12,739.38
  4. Step 4: Simplify right side
    21,740.26x = 415,422,855.01
  5. Step 5: Solve for x
    x = 415,422,855.01/21,740.26
  6. Step 6: Final answer
    x = 19,108.46

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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.