Home / 27,846.30-38,432.43-20,723.57

Finding the Fourth Proportional to 27,846.30, 38,432.43 and 20,723.57

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Solution

The fourth proportional to 27,846.30, 38,432.43 and 20,723.57 is: 28,601.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,846.30 : 38,432.43 = 20,723.57 : x
  2. Step 2: Convert to fraction form
    27,846.30/38,432.43 = 20,723.57/x
  3. Step 3: Cross multiply
    27,846.30x = 38,432.43 × 20,723.57
  4. Step 4: Simplify right side
    27,846.30x = 796,456,961.21
  5. Step 5: Solve for x
    x = 796,456,961.21/27,846.30
  6. Step 6: Final answer
    x = 28,601.90

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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.