Home / 18,438.27-25,450.26-15,947.16

Finding the Fourth Proportional to 18,438.27, 25,450.26 and 15,947.16

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Solution

The fourth proportional to 18,438.27, 25,450.26 and 15,947.16 is: 22,011.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.27 : 25,450.26 = 15,947.16 : x
  2. Step 2: Convert to fraction form
    18,438.27/25,450.26 = 15,947.16/x
  3. Step 3: Cross multiply
    18,438.27x = 25,450.26 × 15,947.16
  4. Step 4: Simplify right side
    18,438.27x = 405,859,368.26
  5. Step 5: Solve for x
    x = 405,859,368.26/18,438.27
  6. Step 6: Final answer
    x = 22,011.79

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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.