Home / 14,228.26-21,341.85-3,840.28

Finding the Fourth Proportional to 14,228.26, 21,341.85 and 3,840.28

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Solution

The fourth proportional to 14,228.26, 21,341.85 and 3,840.28 is: 5,760.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,228.26 : 21,341.85 = 3,840.28 : x
  2. Step 2: Convert to fraction form
    14,228.26/21,341.85 = 3,840.28/x
  3. Step 3: Cross multiply
    14,228.26x = 21,341.85 × 3,840.28
  4. Step 4: Simplify right side
    14,228.26x = 81,958,679.72
  5. Step 5: Solve for x
    x = 81,958,679.72/14,228.26
  6. Step 6: Final answer
    x = 5,760.27

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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.