Home / 16,971.40-25,443.72-8,203.96

Finding the Fourth Proportional to 16,971.40, 25,443.72 and 8,203.96

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Solution

The fourth proportional to 16,971.40, 25,443.72 and 8,203.96 is: 12,299.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,971.40 : 25,443.72 = 8,203.96 : x
  2. Step 2: Convert to fraction form
    16,971.40/25,443.72 = 8,203.96/x
  3. Step 3: Cross multiply
    16,971.40x = 25,443.72 × 8,203.96
  4. Step 4: Simplify right side
    16,971.40x = 208,739,261.13
  5. Step 5: Solve for x
    x = 208,739,261.13/16,971.40
  6. Step 6: Final answer
    x = 12,299.47

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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.