Home / 36,683.64-55,047.32-13,311.90

Finding the Fourth Proportional to 36,683.64, 55,047.32 and 13,311.90

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Solution

The fourth proportional to 36,683.64, 55,047.32 and 13,311.90 is: 19,975.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,683.64 : 55,047.32 = 13,311.90 : x
  2. Step 2: Convert to fraction form
    36,683.64/55,047.32 = 13,311.90/x
  3. Step 3: Cross multiply
    36,683.64x = 55,047.32 × 13,311.90
  4. Step 4: Simplify right side
    36,683.64x = 732,784,419.11
  5. Step 5: Solve for x
    x = 732,784,419.11/36,683.64
  6. Step 6: Final answer
    x = 19,975.78

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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.