Home / 26,990.21-40,449.66-12,954.53

Finding the Fourth Proportional to 26,990.21, 40,449.66 and 12,954.53

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Solution

The fourth proportional to 26,990.21, 40,449.66 and 12,954.53 is: 19,414.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,990.21 : 40,449.66 = 12,954.53 : x
  2. Step 2: Convert to fraction form
    26,990.21/40,449.66 = 12,954.53/x
  3. Step 3: Cross multiply
    26,990.21x = 40,449.66 × 12,954.53
  4. Step 4: Simplify right side
    26,990.21x = 524,006,131.71
  5. Step 5: Solve for x
    x = 524,006,131.71/26,990.21
  6. Step 6: Final answer
    x = 19,414.68

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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.