Home / 20,669.98-31,009.26-10,806.58

Finding the Fourth Proportional to 20,669.98, 31,009.26 and 10,806.58

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Solution

The fourth proportional to 20,669.98, 31,009.26 and 10,806.58 is: 16,212.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669.98 : 31,009.26 = 10,806.58 : x
  2. Step 2: Convert to fraction form
    20,669.98/31,009.26 = 10,806.58/x
  3. Step 3: Cross multiply
    20,669.98x = 31,009.26 × 10,806.58
  4. Step 4: Simplify right side
    20,669.98x = 335,104,048.93
  5. Step 5: Solve for x
    x = 335,104,048.93/20,669.98
  6. Step 6: Final answer
    x = 16,212.11

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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.