Home / 23,036.50-31,790.40-13,100.50

Finding the Fourth Proportional to 23,036.50, 31,790.40 and 13,100.50

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Solution

The fourth proportional to 23,036.50, 31,790.40 and 13,100.50 is: 18,078.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,036.50 : 31,790.40 = 13,100.50 : x
  2. Step 2: Convert to fraction form
    23,036.50/31,790.40 = 13,100.50/x
  3. Step 3: Cross multiply
    23,036.50x = 31,790.40 × 13,100.50
  4. Step 4: Simplify right side
    23,036.50x = 416,470,135.20
  5. Step 5: Solve for x
    x = 416,470,135.20/23,036.50
  6. Step 6: Final answer
    x = 18,078.71

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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.