Home / 27,091.77-40,640.39-10,220.55

Finding the Fourth Proportional to 27,091.77, 40,640.39 and 10,220.55

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Solution

The fourth proportional to 27,091.77, 40,640.39 and 10,220.55 is: 15,331.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,091.77 : 40,640.39 = 10,220.55 : x
  2. Step 2: Convert to fraction form
    27,091.77/40,640.39 = 10,220.55/x
  3. Step 3: Cross multiply
    27,091.77x = 40,640.39 × 10,220.55
  4. Step 4: Simplify right side
    27,091.77x = 415,366,980.02
  5. Step 5: Solve for x
    x = 415,366,980.02/27,091.77
  6. Step 6: Final answer
    x = 15,331.85

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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.