Home / 26,431.68-39,660.45-11,638.74

Finding the Fourth Proportional to 26,431.68, 39,660.45 and 11,638.74

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Solution

The fourth proportional to 26,431.68, 39,660.45 and 11,638.74 is: 17,463.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,431.68 : 39,660.45 = 11,638.74 : x
  2. Step 2: Convert to fraction form
    26,431.68/39,660.45 = 11,638.74/x
  3. Step 3: Cross multiply
    26,431.68x = 39,660.45 × 11,638.74
  4. Step 4: Simplify right side
    26,431.68x = 461,597,665.83
  5. Step 5: Solve for x
    x = 461,597,665.83/26,431.68
  6. Step 6: Final answer
    x = 17,463.80

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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.