Home / 27,640.56-38,143.98-16,310.07

Finding the Fourth Proportional to 27,640.56, 38,143.98 and 16,310.07

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Solution

The fourth proportional to 27,640.56, 38,143.98 and 16,310.07 is: 22,507.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,640.56 : 38,143.98 = 16,310.07 : x
  2. Step 2: Convert to fraction form
    27,640.56/38,143.98 = 16,310.07/x
  3. Step 3: Cross multiply
    27,640.56x = 38,143.98 × 16,310.07
  4. Step 4: Simplify right side
    27,640.56x = 622,130,983.88
  5. Step 5: Solve for x
    x = 622,130,983.88/27,640.56
  6. Step 6: Final answer
    x = 22,507.90

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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.