Home / 26,785.73-40,176.99-11,990.68

Finding the Fourth Proportional to 26,785.73, 40,176.99 and 11,990.68

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Solution

The fourth proportional to 26,785.73, 40,176.99 and 11,990.68 is: 17,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,785.73 : 40,176.99 = 11,990.68 : x
  2. Step 2: Convert to fraction form
    26,785.73/40,176.99 = 11,990.68/x
  3. Step 3: Cross multiply
    26,785.73x = 40,176.99 × 11,990.68
  4. Step 4: Simplify right side
    26,785.73x = 481,749,330.01
  5. Step 5: Solve for x
    x = 481,749,330.01/26,785.73
  6. Step 6: Final answer
    x = 17,985.30

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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.