Home / 23,101.29-31,879.83-12,490.97

Finding the Fourth Proportional to 23,101.29, 31,879.83 and 12,490.97

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Solution

The fourth proportional to 23,101.29, 31,879.83 and 12,490.97 is: 17,237.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,101.29 : 31,879.83 = 12,490.97 : x
  2. Step 2: Convert to fraction form
    23,101.29/31,879.83 = 12,490.97/x
  3. Step 3: Cross multiply
    23,101.29x = 31,879.83 × 12,490.97
  4. Step 4: Simplify right side
    23,101.29x = 398,209,840.74
  5. Step 5: Solve for x
    x = 398,209,840.74/23,101.29
  6. Step 6: Final answer
    x = 17,237.56

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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.