Home / 17,391.48-23,911.68-15,485.28

Finding the Fourth Proportional to 17,391.48, 23,911.68 and 15,485.28

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Solution

The fourth proportional to 17,391.48, 23,911.68 and 15,485.28 is: 21,290.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,391.48 : 23,911.68 = 15,485.28 : x
  2. Step 2: Convert to fraction form
    17,391.48/23,911.68 = 15,485.28/x
  3. Step 3: Cross multiply
    17,391.48x = 23,911.68 × 15,485.28
  4. Step 4: Simplify right side
    17,391.48x = 370,279,060.07
  5. Step 5: Solve for x
    x = 370,279,060.07/17,391.48
  6. Step 6: Final answer
    x = 21,290.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.