Home / 21,058.41-31,560.22-8,563.87

Finding the Fourth Proportional to 21,058.41, 31,560.22 and 8,563.87

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Solution

The fourth proportional to 21,058.41, 31,560.22 and 8,563.87 is: 12,834.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.41 : 31,560.22 = 8,563.87 : x
  2. Step 2: Convert to fraction form
    21,058.41/31,560.22 = 8,563.87/x
  3. Step 3: Cross multiply
    21,058.41x = 31,560.22 × 8,563.87
  4. Step 4: Simplify right side
    21,058.41x = 270,277,621.25
  5. Step 5: Solve for x
    x = 270,277,621.25/21,058.41
  6. Step 6: Final answer
    x = 12,834.66

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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.