Home / 23,991.27-33,090.80-20,798.86

Finding the Fourth Proportional to 23,991.27, 33,090.80 and 20,798.86

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Solution

The fourth proportional to 23,991.27, 33,090.80 and 20,798.86 is: 28,687.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,991.27 : 33,090.80 = 20,798.86 : x
  2. Step 2: Convert to fraction form
    23,991.27/33,090.80 = 20,798.86/x
  3. Step 3: Cross multiply
    23,991.27x = 33,090.80 × 20,798.86
  4. Step 4: Simplify right side
    23,991.27x = 688,250,751.03
  5. Step 5: Solve for x
    x = 688,250,751.03/23,991.27
  6. Step 6: Final answer
    x = 28,687.55

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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.