Home / 20,446.19-30,669.29-11,270.51

Finding the Fourth Proportional to 20,446.19, 30,669.29 and 11,270.51

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Solution

The fourth proportional to 20,446.19, 30,669.29 and 11,270.51 is: 16,905.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.19 : 30,669.29 = 11,270.51 : x
  2. Step 2: Convert to fraction form
    20,446.19/30,669.29 = 11,270.51/x
  3. Step 3: Cross multiply
    20,446.19x = 30,669.29 × 11,270.51
  4. Step 4: Simplify right side
    20,446.19x = 345,658,329.94
  5. Step 5: Solve for x
    x = 345,658,329.94/20,446.19
  6. Step 6: Final answer
    x = 16,905.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.