Home / 19,890.56-27,448.44-10,937.36

Finding the Fourth Proportional to 19,890.56, 27,448.44 and 10,937.36

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Solution

The fourth proportional to 19,890.56, 27,448.44 and 10,937.36 is: 15,093.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.56 : 27,448.44 = 10,937.36 : x
  2. Step 2: Convert to fraction form
    19,890.56/27,448.44 = 10,937.36/x
  3. Step 3: Cross multiply
    19,890.56x = 27,448.44 × 10,937.36
  4. Step 4: Simplify right side
    19,890.56x = 300,213,469.72
  5. Step 5: Solve for x
    x = 300,213,469.72/19,890.56
  6. Step 6: Final answer
    x = 15,093.26

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1.5x scale

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.