Home / 26,090.88-39,136.31-12,239.88

Finding the Fourth Proportional to 26,090.88, 39,136.31 and 12,239.88

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Solution

The fourth proportional to 26,090.88, 39,136.31 and 12,239.88 is: 18,359.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,090.88 : 39,136.31 = 12,239.88 : x
  2. Step 2: Convert to fraction form
    26,090.88/39,136.31 = 12,239.88/x
  3. Step 3: Cross multiply
    26,090.88x = 39,136.31 × 12,239.88
  4. Step 4: Simplify right side
    26,090.88x = 479,023,738.04
  5. Step 5: Solve for x
    x = 479,023,738.04/26,090.88
  6. Step 6: Final answer
    x = 18,359.82

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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.