Home / 20,107.36-27,748.98-12,148

Finding the Fourth Proportional to 20,107.36, 27,748.98 and 12,148

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Solution

The fourth proportional to 20,107.36, 27,748.98 and 12,148 is: 16,764.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107.36 : 27,748.98 = 12,148 : x
  2. Step 2: Convert to fraction form
    20,107.36/27,748.98 = 12,148/x
  3. Step 3: Cross multiply
    20,107.36x = 27,748.98 × 12,148
  4. Step 4: Simplify right side
    20,107.36x = 337,094,609.04
  5. Step 5: Solve for x
    x = 337,094,609.04/20,107.36
  6. Step 6: Final answer
    x = 16,764.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.