Home / 40,086.44-60,129.64-13,791.40

Finding the Fourth Proportional to 40,086.44, 60,129.64 and 13,791.40

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Solution

The fourth proportional to 40,086.44, 60,129.64 and 13,791.40 is: 20,687.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,086.44 : 60,129.64 = 13,791.40 : x
  2. Step 2: Convert to fraction form
    40,086.44/60,129.64 = 13,791.40/x
  3. Step 3: Cross multiply
    40,086.44x = 60,129.64 × 13,791.40
  4. Step 4: Simplify right side
    40,086.44x = 829,271,917.10
  5. Step 5: Solve for x
    x = 829,271,917.10/40,086.44
  6. Step 6: Final answer
    x = 20,687.09

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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.