Home / 36,913.81-55,378.03-13,540.45

Finding the Fourth Proportional to 36,913.81, 55,378.03 and 13,540.45

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Solution

The fourth proportional to 36,913.81, 55,378.03 and 13,540.45 is: 20,313.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,913.81 : 55,378.03 = 13,540.45 : x
  2. Step 2: Convert to fraction form
    36,913.81/55,378.03 = 13,540.45/x
  3. Step 3: Cross multiply
    36,913.81x = 55,378.03 × 13,540.45
  4. Step 4: Simplify right side
    36,913.81x = 749,843,446.31
  5. Step 5: Solve for x
    x = 749,843,446.31/36,913.81
  6. Step 6: Final answer
    x = 20,313.36

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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.