Home / 21,058.33-31,560.17-8,563.81

Finding the Fourth Proportional to 21,058.33, 31,560.17 and 8,563.81

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Solution

The fourth proportional to 21,058.33, 31,560.17 and 8,563.81 is: 12,834.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.33 : 31,560.17 = 8,563.81 : x
  2. Step 2: Convert to fraction form
    21,058.33/31,560.17 = 8,563.81/x
  3. Step 3: Cross multiply
    21,058.33x = 31,560.17 × 8,563.81
  4. Step 4: Simplify right side
    21,058.33x = 270,275,299.45
  5. Step 5: Solve for x
    x = 270,275,299.45/21,058.33
  6. Step 6: Final answer
    x = 12,834.60

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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.