Home / 23,101.06-31,879.41-13,029.47

Finding the Fourth Proportional to 23,101.06, 31,879.41 and 13,029.47

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Solution

The fourth proportional to 23,101.06, 31,879.41 and 13,029.47 is: 17,980.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,101.06 : 31,879.41 = 13,029.47 : x
  2. Step 2: Convert to fraction form
    23,101.06/31,879.41 = 13,029.47/x
  3. Step 3: Cross multiply
    23,101.06x = 31,879.41 × 13,029.47
  4. Step 4: Simplify right side
    23,101.06x = 415,371,747.78
  5. Step 5: Solve for x
    x = 415,371,747.78/23,101.06
  6. Step 6: Final answer
    x = 17,980.64

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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.