Home / 20,039.64-30,059.73-18,821.94

Finding the Fourth Proportional to 20,039.64, 30,059.73 and 18,821.94

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Solution

The fourth proportional to 20,039.64, 30,059.73 and 18,821.94 is: 28,233.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.64 : 30,059.73 = 18,821.94 : x
  2. Step 2: Convert to fraction form
    20,039.64/30,059.73 = 18,821.94/x
  3. Step 3: Cross multiply
    20,039.64x = 30,059.73 × 18,821.94
  4. Step 4: Simplify right side
    20,039.64x = 565,782,434.48
  5. Step 5: Solve for x
    x = 565,782,434.48/20,039.64
  6. Step 6: Final answer
    x = 28,233.16

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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.