Home / 36,778.40-55,176.80-11,820.64

Finding the Fourth Proportional to 36,778.40, 55,176.80 and 11,820.64

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Solution

The fourth proportional to 36,778.40, 55,176.80 and 11,820.64 is: 17,733.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,778.40 : 55,176.80 = 11,820.64 : x
  2. Step 2: Convert to fraction form
    36,778.40/55,176.80 = 11,820.64/x
  3. Step 3: Cross multiply
    36,778.40x = 55,176.80 × 11,820.64
  4. Step 4: Simplify right side
    36,778.40x = 652,225,089.15
  5. Step 5: Solve for x
    x = 652,225,089.15/36,778.40
  6. Step 6: Final answer
    x = 17,733.92

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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.