Home / 20,954.72-28,923.64-12,462.82

Finding the Fourth Proportional to 20,954.72, 28,923.64 and 12,462.82

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Solution

The fourth proportional to 20,954.72, 28,923.64 and 12,462.82 is: 17,202.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954.72 : 28,923.64 = 12,462.82 : x
  2. Step 2: Convert to fraction form
    20,954.72/28,923.64 = 12,462.82/x
  3. Step 3: Cross multiply
    20,954.72x = 28,923.64 × 12,462.82
  4. Step 4: Simplify right side
    20,954.72x = 360,470,119.06
  5. Step 5: Solve for x
    x = 360,470,119.06/20,954.72
  6. Step 6: Final answer
    x = 17,202.34

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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.