Home / 26,853.66-40,283.28-12,811.32

Finding the Fourth Proportional to 26,853.66, 40,283.28 and 12,811.32

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Solution

The fourth proportional to 26,853.66, 40,283.28 and 12,811.32 is: 19,218.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,853.66 : 40,283.28 = 12,811.32 : x
  2. Step 2: Convert to fraction form
    26,853.66/40,283.28 = 12,811.32/x
  3. Step 3: Cross multiply
    26,853.66x = 40,283.28 × 12,811.32
  4. Step 4: Simplify right side
    26,853.66x = 516,081,990.73
  5. Step 5: Solve for x
    x = 516,081,990.73/26,853.66
  6. Step 6: Final answer
    x = 19,218.31

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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.