Home / 21,977.42-30,329.39-13,023.48

Finding the Fourth Proportional to 21,977.42, 30,329.39 and 13,023.48

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Solution

The fourth proportional to 21,977.42, 30,329.39 and 13,023.48 is: 17,972.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,977.42 : 30,329.39 = 13,023.48 : x
  2. Step 2: Convert to fraction form
    21,977.42/30,329.39 = 13,023.48/x
  3. Step 3: Cross multiply
    21,977.42x = 30,329.39 × 13,023.48
  4. Step 4: Simplify right side
    21,977.42x = 394,994,236.64
  5. Step 5: Solve for x
    x = 394,994,236.64/21,977.42
  6. Step 6: Final answer
    x = 17,972.73

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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.