Home / 21,028.31-31,550.88-8,549.29

Finding the Fourth Proportional to 21,028.31, 31,550.88 and 8,549.29

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Solution

The fourth proportional to 21,028.31, 31,550.88 and 8,549.29 is: 12,827.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,028.31 : 31,550.88 = 8,549.29 : x
  2. Step 2: Convert to fraction form
    21,028.31/31,550.88 = 8,549.29/x
  3. Step 3: Cross multiply
    21,028.31x = 31,550.88 × 8,549.29
  4. Step 4: Simplify right side
    21,028.31x = 269,737,622.88
  5. Step 5: Solve for x
    x = 269,737,622.88/21,028.31
  6. Step 6: Final answer
    x = 12,827.36

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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.