Home / 14,228.39-21,342.59-3,840.14

Finding the Fourth Proportional to 14,228.39, 21,342.59 and 3,840.14

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Solution

The fourth proportional to 14,228.39, 21,342.59 and 3,840.14 is: 5,760.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,228.39 : 21,342.59 = 3,840.14 : x
  2. Step 2: Convert to fraction form
    14,228.39/21,342.59 = 3,840.14/x
  3. Step 3: Cross multiply
    14,228.39x = 21,342.59 × 3,840.14
  4. Step 4: Simplify right side
    14,228.39x = 81,958,407.65
  5. Step 5: Solve for x
    x = 81,958,407.65/14,228.39
  6. Step 6: Final answer
    x = 5,760.20

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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.