Home / 36,782.72-55,140.64-13,403.84

Finding the Fourth Proportional to 36,782.72, 55,140.64 and 13,403.84

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Solution

The fourth proportional to 36,782.72, 55,140.64 and 13,403.84 is: 20,093.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,782.72 : 55,140.64 = 13,403.84 : x
  2. Step 2: Convert to fraction form
    36,782.72/55,140.64 = 13,403.84/x
  3. Step 3: Cross multiply
    36,782.72x = 55,140.64 × 13,403.84
  4. Step 4: Simplify right side
    36,782.72x = 739,096,316.06
  5. Step 5: Solve for x
    x = 739,096,316.06/36,782.72
  6. Step 6: Final answer
    x = 20,093.57

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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.