Home / 23,151.78-31,947.56-13,081.09

Finding the Fourth Proportional to 23,151.78, 31,947.56 and 13,081.09

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Solution

The fourth proportional to 23,151.78, 31,947.56 and 13,081.09 is: 18,050.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,151.78 : 31,947.56 = 13,081.09 : x
  2. Step 2: Convert to fraction form
    23,151.78/31,947.56 = 13,081.09/x
  3. Step 3: Cross multiply
    23,151.78x = 31,947.56 × 13,081.09
  4. Step 4: Simplify right side
    23,151.78x = 417,908,907.64
  5. Step 5: Solve for x
    x = 417,908,907.64/23,151.78
  6. Step 6: Final answer
    x = 18,050.83

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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.