Home / 40,126.72-60,187.68-13,830.88

Finding the Fourth Proportional to 40,126.72, 60,187.68 and 13,830.88

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Solution

The fourth proportional to 40,126.72, 60,187.68 and 13,830.88 is: 20,745.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,126.72 : 60,187.68 = 13,830.88 : x
  2. Step 2: Convert to fraction form
    40,126.72/60,187.68 = 13,830.88/x
  3. Step 3: Cross multiply
    40,126.72x = 60,187.68 × 13,830.88
  4. Step 4: Simplify right side
    40,126.72x = 832,448,579.56
  5. Step 5: Solve for x
    x = 832,448,579.56/40,126.72
  6. Step 6: Final answer
    x = 20,745.49

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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.