Home / 22,379.76-30,883.47-12,309.23

Finding the Fourth Proportional to 22,379.76, 30,883.47 and 12,309.23

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Solution

The fourth proportional to 22,379.76, 30,883.47 and 12,309.23 is: 16,986.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,379.76 : 30,883.47 = 12,309.23 : x
  2. Step 2: Convert to fraction form
    22,379.76/30,883.47 = 12,309.23/x
  3. Step 3: Cross multiply
    22,379.76x = 30,883.47 × 12,309.23
  4. Step 4: Simplify right side
    22,379.76x = 380,151,735.43
  5. Step 5: Solve for x
    x = 380,151,735.43/22,379.76
  6. Step 6: Final answer
    x = 16,986.41

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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.