Home / 26,455.09-39,661.83-18,109.81

Finding the Fourth Proportional to 26,455.09, 39,661.83 and 18,109.81

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Solution

The fourth proportional to 26,455.09, 39,661.83 and 18,109.81 is: 27,150.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,455.09 : 39,661.83 = 18,109.81 : x
  2. Step 2: Convert to fraction form
    26,455.09/39,661.83 = 18,109.81/x
  3. Step 3: Cross multiply
    26,455.09x = 39,661.83 × 18,109.81
  4. Step 4: Simplify right side
    26,455.09x = 718,268,205.55
  5. Step 5: Solve for x
    x = 718,268,205.55/26,455.09
  6. Step 6: Final answer
    x = 27,150.47

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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.