Home / 26,727.72-40,111.28-12,687.64

Finding the Fourth Proportional to 26,727.72, 40,111.28 and 12,687.64

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Solution

The fourth proportional to 26,727.72, 40,111.28 and 12,687.64 is: 19,040.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,727.72 : 40,111.28 = 12,687.64 : x
  2. Step 2: Convert to fraction form
    26,727.72/40,111.28 = 12,687.64/x
  3. Step 3: Cross multiply
    26,727.72x = 40,111.28 × 12,687.64
  4. Step 4: Simplify right side
    26,727.72x = 508,917,480.58
  5. Step 5: Solve for x
    x = 508,917,480.58/26,727.72
  6. Step 6: Final answer
    x = 19,040.81

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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.