Home / 21,028.68-31,551.44-8,549.66

Finding the Fourth Proportional to 21,028.68, 31,551.44 and 8,549.66

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Solution

The fourth proportional to 21,028.68, 31,551.44 and 8,549.66 is: 12,827.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,028.68 : 31,551.44 = 8,549.66 : x
  2. Step 2: Convert to fraction form
    21,028.68/31,551.44 = 8,549.66/x
  3. Step 3: Cross multiply
    21,028.68x = 31,551.44 × 8,549.66
  4. Step 4: Simplify right side
    21,028.68x = 269,754,120.64
  5. Step 5: Solve for x
    x = 269,754,120.64/21,028.68
  6. Step 6: Final answer
    x = 12,827.92

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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.