Home / 19,043.72-26,255.16-15,628.28

Finding the Fourth Proportional to 19,043.72, 26,255.16 and 15,628.28

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Solution

The fourth proportional to 19,043.72, 26,255.16 and 15,628.28 is: 21,546.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,043.72 : 26,255.16 = 15,628.28 : x
  2. Step 2: Convert to fraction form
    19,043.72/26,255.16 = 15,628.28/x
  3. Step 3: Cross multiply
    19,043.72x = 26,255.16 × 15,628.28
  4. Step 4: Simplify right side
    19,043.72x = 410,322,991.92
  5. Step 5: Solve for x
    x = 410,322,991.92/19,043.72
  6. Step 6: Final answer
    x = 21,546.37

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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.