Home / 14,051.82-20,921.12-13,855.58

Finding the Fourth Proportional to 14,051.82, 20,921.12 and 13,855.58

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Solution

The fourth proportional to 14,051.82, 20,921.12 and 13,855.58 is: 20,628.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,051.82 : 20,921.12 = 13,855.58 : x
  2. Step 2: Convert to fraction form
    14,051.82/20,921.12 = 13,855.58/x
  3. Step 3: Cross multiply
    14,051.82x = 20,921.12 × 13,855.58
  4. Step 4: Simplify right side
    14,051.82x = 289,874,077.97
  5. Step 5: Solve for x
    x = 289,874,077.97/14,051.82
  6. Step 6: Final answer
    x = 20,628.93

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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.