Home / 23,101.14-31,879.58-12,490.76

Finding the Fourth Proportional to 23,101.14, 31,879.58 and 12,490.76

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Solution

The fourth proportional to 23,101.14, 31,879.58 and 12,490.76 is: 17,237.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,101.14 : 31,879.58 = 12,490.76 : x
  2. Step 2: Convert to fraction form
    23,101.14/31,879.58 = 12,490.76/x
  3. Step 3: Cross multiply
    23,101.14x = 31,879.58 × 12,490.76
  4. Step 4: Simplify right side
    23,101.14x = 398,200,102.98
  5. Step 5: Solve for x
    x = 398,200,102.98/23,101.14
  6. Step 6: Final answer
    x = 17,237.25

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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.