Home / 21,969.63-30,311.01-13,467.26

Finding the Fourth Proportional to 21,969.63, 30,311.01 and 13,467.26

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Solution

The fourth proportional to 21,969.63, 30,311.01 and 13,467.26 is: 18,580.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,969.63 : 30,311.01 = 13,467.26 : x
  2. Step 2: Convert to fraction form
    21,969.63/30,311.01 = 13,467.26/x
  3. Step 3: Cross multiply
    21,969.63x = 30,311.01 × 13,467.26
  4. Step 4: Simplify right side
    21,969.63x = 408,206,328.31
  5. Step 5: Solve for x
    x = 408,206,328.31/21,969.63
  6. Step 6: Final answer
    x = 18,580.48

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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.