Home / 21,992.88-30,346.74-12,433.26

Finding the Fourth Proportional to 21,992.88, 30,346.74 and 12,433.26

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Solution

The fourth proportional to 21,992.88, 30,346.74 and 12,433.26 is: 17,155.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,992.88 : 30,346.74 = 12,433.26 : x
  2. Step 2: Convert to fraction form
    21,992.88/30,346.74 = 12,433.26/x
  3. Step 3: Cross multiply
    21,992.88x = 30,346.74 × 12,433.26
  4. Step 4: Simplify right side
    21,992.88x = 377,308,908.57
  5. Step 5: Solve for x
    x = 377,308,908.57/21,992.88
  6. Step 6: Final answer
    x = 17,155.96

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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.