Home / 19,625.24-27,077.34-18,640.28

Finding the Fourth Proportional to 19,625.24, 27,077.34 and 18,640.28

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Solution

The fourth proportional to 19,625.24, 27,077.34 and 18,640.28 is: 25,718.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,625.24 : 27,077.34 = 18,640.28 : x
  2. Step 2: Convert to fraction form
    19,625.24/27,077.34 = 18,640.28/x
  3. Step 3: Cross multiply
    19,625.24x = 27,077.34 × 18,640.28
  4. Step 4: Simplify right side
    19,625.24x = 504,729,199.26
  5. Step 5: Solve for x
    x = 504,729,199.26/19,625.24
  6. Step 6: Final answer
    x = 25,718.37

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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.