Home / 21,185.44-31,782.26-8,047.03

Finding the Fourth Proportional to 21,185.44, 31,782.26 and 8,047.03

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Solution

The fourth proportional to 21,185.44, 31,782.26 and 8,047.03 is: 12,072.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185.44 : 31,782.26 = 8,047.03 : x
  2. Step 2: Convert to fraction form
    21,185.44/31,782.26 = 8,047.03/x
  3. Step 3: Cross multiply
    21,185.44x = 31,782.26 × 8,047.03
  4. Step 4: Simplify right side
    21,185.44x = 255,752,799.69
  5. Step 5: Solve for x
    x = 255,752,799.69/21,185.44
  6. Step 6: Final answer
    x = 12,072.10

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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.