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Finding the Fourth Proportional to 36,889.07, 55,219.07 and 19,980.09

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Solution

The fourth proportional to 36,889.07, 55,219.07 and 19,980.09 is: 29,908.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,889.07 : 55,219.07 = 19,980.09 : x
  2. Step 2: Convert to fraction form
    36,889.07/55,219.07 = 19,980.09/x
  3. Step 3: Cross multiply
    36,889.07x = 55,219.07 × 19,980.09
  4. Step 4: Simplify right side
    36,889.07x = 1,103,281,662.27
  5. Step 5: Solve for x
    x = 1,103,281,662.27/36,889.07
  6. Step 6: Final answer
    x = 29,908.09

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1.5x scale

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.