Home / 36,778.56-55,176.12-13,405.08

Finding the Fourth Proportional to 36,778.56, 55,176.12 and 13,405.08

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Solution

The fourth proportional to 36,778.56, 55,176.12 and 13,405.08 is: 20,110.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,778.56 : 55,176.12 = 13,405.08 : x
  2. Step 2: Convert to fraction form
    36,778.56/55,176.12 = 13,405.08/x
  3. Step 3: Cross multiply
    36,778.56x = 55,176.12 × 13,405.08
  4. Step 4: Simplify right side
    36,778.56x = 739,640,302.69
  5. Step 5: Solve for x
    x = 739,640,302.69/36,778.56
  6. Step 6: Final answer
    x = 20,110.64

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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.