Home / 36,783.78-55,170.36-11,820.57

Finding the Fourth Proportional to 36,783.78, 55,170.36 and 11,820.57

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Solution

The fourth proportional to 36,783.78, 55,170.36 and 11,820.57 is: 17,729.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,783.78 : 55,170.36 = 11,820.57 : x
  2. Step 2: Convert to fraction form
    36,783.78/55,170.36 = 11,820.57/x
  3. Step 3: Cross multiply
    36,783.78x = 55,170.36 × 11,820.57
  4. Step 4: Simplify right side
    36,783.78x = 652,145,102.31
  5. Step 5: Solve for x
    x = 652,145,102.31/36,783.78
  6. Step 6: Final answer
    x = 17,729.15

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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.