Home / 36,688.56-55,033.68-20,779.92

Finding the Fourth Proportional to 36,688.56, 55,033.68 and 20,779.92

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Solution

The fourth proportional to 36,688.56, 55,033.68 and 20,779.92 is: 31,170.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,688.56 : 55,033.68 = 20,779.92 : x
  2. Step 2: Convert to fraction form
    36,688.56/55,033.68 = 20,779.92/x
  3. Step 3: Cross multiply
    36,688.56x = 55,033.68 × 20,779.92
  4. Step 4: Simplify right side
    36,688.56x = 1,143,595,467.71
  5. Step 5: Solve for x
    x = 1,143,595,467.71/36,688.56
  6. Step 6: Final answer
    x = 31,170.36

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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.