Home / 23,991.20-33,090.72-20,798.79

Finding the Fourth Proportional to 23,991.20, 33,090.72 and 20,798.79

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Solution

The fourth proportional to 23,991.20, 33,090.72 and 20,798.79 is: 28,687.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,991.20 : 33,090.72 = 20,798.79 : x
  2. Step 2: Convert to fraction form
    23,991.20/33,090.72 = 20,798.79/x
  3. Step 3: Cross multiply
    23,991.20x = 33,090.72 × 20,798.79
  4. Step 4: Simplify right side
    23,991.20x = 688,246,842.87
  5. Step 5: Solve for x
    x = 688,246,842.87/23,991.20
  6. Step 6: Final answer
    x = 28,687.47

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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.