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Finding the Fourth Proportional to 20,369.08, 30,415.01 and 17,977.24

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Solution

The fourth proportional to 20,369.08, 30,415.01 and 17,977.24 is: 26,843.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,369.08 : 30,415.01 = 17,977.24 : x
  2. Step 2: Convert to fraction form
    20,369.08/30,415.01 = 17,977.24/x
  3. Step 3: Cross multiply
    20,369.08x = 30,415.01 × 17,977.24
  4. Step 4: Simplify right side
    20,369.08x = 546,777,934.37
  5. Step 5: Solve for x
    x = 546,777,934.37/20,369.08
  6. Step 6: Final answer
    x = 26,843.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.