Home / 36,780.05-55,178.28-13,406.49

Finding the Fourth Proportional to 36,780.05, 55,178.28 and 13,406.49

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Solution

The fourth proportional to 36,780.05, 55,178.28 and 13,406.49 is: 20,112.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,780.05 : 55,178.28 = 13,406.49 : x
  2. Step 2: Convert to fraction form
    36,780.05/55,178.28 = 13,406.49/x
  3. Step 3: Cross multiply
    36,780.05x = 55,178.28 × 13,406.49
  4. Step 4: Simplify right side
    36,780.05x = 739,747,059.04
  5. Step 5: Solve for x
    x = 739,747,059.04/36,780.05
  6. Step 6: Final answer
    x = 20,112.72

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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.