Home / 21,058.44-31,606.78-11,205.96

Finding the Fourth Proportional to 21,058.44, 31,606.78 and 11,205.96

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Solution

The fourth proportional to 21,058.44, 31,606.78 and 11,205.96 is: 16,819.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.44 : 31,606.78 = 11,205.96 : x
  2. Step 2: Convert to fraction form
    21,058.44/31,606.78 = 11,205.96/x
  3. Step 3: Cross multiply
    21,058.44x = 31,606.78 × 11,205.96
  4. Step 4: Simplify right side
    21,058.44x = 354,184,312.41
  5. Step 5: Solve for x
    x = 354,184,312.41/21,058.44
  6. Step 6: Final answer
    x = 16,819.11

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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.