Home / 36,750.96-55,139.40-13,379.76

Finding the Fourth Proportional to 36,750.96, 55,139.40 and 13,379.76

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Solution

The fourth proportional to 36,750.96, 55,139.40 and 13,379.76 is: 20,074.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,750.96 : 55,139.40 = 13,379.76 : x
  2. Step 2: Convert to fraction form
    36,750.96/55,139.40 = 13,379.76/x
  3. Step 3: Cross multiply
    36,750.96x = 55,139.40 × 13,379.76
  4. Step 4: Simplify right side
    36,750.96x = 737,751,938.54
  5. Step 5: Solve for x
    x = 737,751,938.54/36,750.96
  6. Step 6: Final answer
    x = 20,074.36

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1.5x scale

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.