Home / 26,161.79-39,190.08-12,102.08

Finding the Fourth Proportional to 26,161.79, 39,190.08 and 12,102.08

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Solution

The fourth proportional to 26,161.79, 39,190.08 and 12,102.08 is: 18,128.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,161.79 : 39,190.08 = 12,102.08 : x
  2. Step 2: Convert to fraction form
    26,161.79/39,190.08 = 12,102.08/x
  3. Step 3: Cross multiply
    26,161.79x = 39,190.08 × 12,102.08
  4. Step 4: Simplify right side
    26,161.79x = 474,281,483.37
  5. Step 5: Solve for x
    x = 474,281,483.37/26,161.79
  6. Step 6: Final answer
    x = 18,128.79

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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.