Home / 21,058.92-31,560.98-8,564.37

Finding the Fourth Proportional to 21,058.92, 31,560.98 and 8,564.37

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Solution

The fourth proportional to 21,058.92, 31,560.98 and 8,564.37 is: 12,835.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.92 : 31,560.98 = 8,564.37 : x
  2. Step 2: Convert to fraction form
    21,058.92/31,560.98 = 8,564.37/x
  3. Step 3: Cross multiply
    21,058.92x = 31,560.98 × 8,564.37
  4. Step 4: Simplify right side
    21,058.92x = 270,299,867.46
  5. Step 5: Solve for x
    x = 270,299,867.46/21,058.92
  6. Step 6: Final answer
    x = 12,835.41

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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.