Home / 21,842.37-30,137.63-13,896.27

Finding the Fourth Proportional to 21,842.37, 30,137.63 and 13,896.27

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Solution

The fourth proportional to 21,842.37, 30,137.63 and 13,896.27 is: 19,173.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,842.37 : 30,137.63 = 13,896.27 : x
  2. Step 2: Convert to fraction form
    21,842.37/30,137.63 = 13,896.27/x
  3. Step 3: Cross multiply
    21,842.37x = 30,137.63 × 13,896.27
  4. Step 4: Simplify right side
    21,842.37x = 418,800,574.16
  5. Step 5: Solve for x
    x = 418,800,574.16/21,842.37
  6. Step 6: Final answer
    x = 19,173.77

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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.