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Finding the Fourth Proportional to 23,969.79, 33,003.03 and 20,377.68

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Solution

The fourth proportional to 23,969.79, 33,003.03 and 20,377.68 is: 28,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,969.79 : 33,003.03 = 20,377.68 : x
  2. Step 2: Convert to fraction form
    23,969.79/33,003.03 = 20,377.68/x
  3. Step 3: Cross multiply
    23,969.79x = 33,003.03 × 20,377.68
  4. Step 4: Simplify right side
    23,969.79x = 672,525,184.37
  5. Step 5: Solve for x
    x = 672,525,184.37/23,969.79
  6. Step 6: Final answer
    x = 28,057.20

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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.