Home / 26,811-36,999.21-15,635.16

Finding the Fourth Proportional to 26,811, 36,999.21 and 15,635.16

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Solution

The fourth proportional to 26,811, 36,999.21 and 15,635.16 is: 21,576.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,811 : 36,999.21 = 15,635.16 : x
  2. Step 2: Convert to fraction form
    26,811/36,999.21 = 15,635.16/x
  3. Step 3: Cross multiply
    26,811x = 36,999.21 × 15,635.16
  4. Step 4: Simplify right side
    26,811x = 578,488,568.22
  5. Step 5: Solve for x
    x = 578,488,568.22/26,811
  6. Step 6: Final answer
    x = 21,576.54

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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.