Home / 13,809.44-20,620.04-13,029.76

Finding the Fourth Proportional to 13,809.44, 20,620.04 and 13,029.76

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Solution

The fourth proportional to 13,809.44, 20,620.04 and 13,029.76 is: 19,455.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.44 : 20,620.04 = 13,029.76 : x
  2. Step 2: Convert to fraction form
    13,809.44/20,620.04 = 13,029.76/x
  3. Step 3: Cross multiply
    13,809.44x = 20,620.04 × 13,029.76
  4. Step 4: Simplify right side
    13,809.44x = 268,674,172.39
  5. Step 5: Solve for x
    x = 268,674,172.39/13,809.44
  6. Step 6: Final answer
    x = 19,455.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.