Home / 21,119.63-31,679.45-6,328.22

Finding the Fourth Proportional to 21,119.63, 31,679.45 and 6,328.22

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Solution

The fourth proportional to 21,119.63, 31,679.45 and 6,328.22 is: 9,492.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,119.63 : 31,679.45 = 6,328.22 : x
  2. Step 2: Convert to fraction form
    21,119.63/31,679.45 = 6,328.22/x
  3. Step 3: Cross multiply
    21,119.63x = 31,679.45 × 6,328.22
  4. Step 4: Simplify right side
    21,119.63x = 200,474,497.44
  5. Step 5: Solve for x
    x = 200,474,497.44/21,119.63
  6. Step 6: Final answer
    x = 9,492.33

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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.