Home / 27,843.66-38,475.09-20,276.82

Finding the Fourth Proportional to 27,843.66, 38,475.09 and 20,276.82

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Solution

The fourth proportional to 27,843.66, 38,475.09 and 20,276.82 is: 28,019.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,843.66 : 38,475.09 = 20,276.82 : x
  2. Step 2: Convert to fraction form
    27,843.66/38,475.09 = 20,276.82/x
  3. Step 3: Cross multiply
    27,843.66x = 38,475.09 × 20,276.82
  4. Step 4: Simplify right side
    27,843.66x = 780,152,474.41
  5. Step 5: Solve for x
    x = 780,152,474.41/27,843.66
  6. Step 6: Final answer
    x = 28,019.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.