Home / 28,954.40-43,406.46-11,419.92

Finding the Fourth Proportional to 28,954.40, 43,406.46 and 11,419.92

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Solution

The fourth proportional to 28,954.40, 43,406.46 and 11,419.92 is: 17,119.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,954.40 : 43,406.46 = 11,419.92 : x
  2. Step 2: Convert to fraction form
    28,954.40/43,406.46 = 11,419.92/x
  3. Step 3: Cross multiply
    28,954.40x = 43,406.46 × 11,419.92
  4. Step 4: Simplify right side
    28,954.40x = 495,698,300.68
  5. Step 5: Solve for x
    x = 495,698,300.68/28,954.40
  6. Step 6: Final answer
    x = 17,119.97

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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.