Home / 29,189.77-40,239.89-20,791.69

Finding the Fourth Proportional to 29,189.77, 40,239.89 and 20,791.69

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Solution

The fourth proportional to 29,189.77, 40,239.89 and 20,791.69 is: 28,662.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,189.77 : 40,239.89 = 20,791.69 : x
  2. Step 2: Convert to fraction form
    29,189.77/40,239.89 = 20,791.69/x
  3. Step 3: Cross multiply
    29,189.77x = 40,239.89 × 20,791.69
  4. Step 4: Simplify right side
    29,189.77x = 836,655,191.92
  5. Step 5: Solve for x
    x = 836,655,191.92/29,189.77
  6. Step 6: Final answer
    x = 28,662.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.