Home / 18,391.77-25,381.49-14,147.37

Finding the Fourth Proportional to 18,391.77, 25,381.49 and 14,147.37

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Solution

The fourth proportional to 18,391.77, 25,381.49 and 14,147.37 is: 19,524.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,391.77 : 25,381.49 = 14,147.37 : x
  2. Step 2: Convert to fraction form
    18,391.77/25,381.49 = 14,147.37/x
  3. Step 3: Cross multiply
    18,391.77x = 25,381.49 × 14,147.37
  4. Step 4: Simplify right side
    18,391.77x = 359,081,259.44
  5. Step 5: Solve for x
    x = 359,081,259.44/18,391.77
  6. Step 6: Final answer
    x = 19,524.02

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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.