Home / 21,911.44-30,230.40-12,473.32

Finding the Fourth Proportional to 21,911.44, 30,230.40 and 12,473.32

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Solution

The fourth proportional to 21,911.44, 30,230.40 and 12,473.32 is: 17,208.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,911.44 : 30,230.40 = 12,473.32 : x
  2. Step 2: Convert to fraction form
    21,911.44/30,230.40 = 12,473.32/x
  3. Step 3: Cross multiply
    21,911.44x = 30,230.40 × 12,473.32
  4. Step 4: Simplify right side
    21,911.44x = 377,073,452.93
  5. Step 5: Solve for x
    x = 377,073,452.93/21,911.44
  6. Step 6: Final answer
    x = 17,208.98

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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.