Home / 29,119.72-40,197.68-20,057.80

Finding the Fourth Proportional to 29,119.72, 40,197.68 and 20,057.80

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Solution

The fourth proportional to 29,119.72, 40,197.68 and 20,057.80 is: 27,688.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,119.72 : 40,197.68 = 20,057.80 : x
  2. Step 2: Convert to fraction form
    29,119.72/40,197.68 = 20,057.80/x
  3. Step 3: Cross multiply
    29,119.72x = 40,197.68 × 20,057.80
  4. Step 4: Simplify right side
    29,119.72x = 806,277,025.90
  5. Step 5: Solve for x
    x = 806,277,025.90/29,119.72
  6. Step 6: Final answer
    x = 27,688.35

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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.