Home / 26,908.34-40,362.06-12,106.78

Finding the Fourth Proportional to 26,908.34, 40,362.06 and 12,106.78

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Solution

The fourth proportional to 26,908.34, 40,362.06 and 12,106.78 is: 18,159.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,908.34 : 40,362.06 = 12,106.78 : x
  2. Step 2: Convert to fraction form
    26,908.34/40,362.06 = 12,106.78/x
  3. Step 3: Cross multiply
    26,908.34x = 40,362.06 × 12,106.78
  4. Step 4: Simplify right side
    26,908.34x = 488,654,580.77
  5. Step 5: Solve for x
    x = 488,654,580.77/26,908.34
  6. Step 6: Final answer
    x = 18,159.97

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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.