Home / 31,917.78-44,074.26-20,001.60

Finding the Fourth Proportional to 31,917.78, 44,074.26 and 20,001.60

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Solution

The fourth proportional to 31,917.78, 44,074.26 and 20,001.60 is: 27,619.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,917.78 : 44,074.26 = 20,001.60 : x
  2. Step 2: Convert to fraction form
    31,917.78/44,074.26 = 20,001.60/x
  3. Step 3: Cross multiply
    31,917.78x = 44,074.26 × 20,001.60
  4. Step 4: Simplify right side
    31,917.78x = 881,555,718.82
  5. Step 5: Solve for x
    x = 881,555,718.82/31,917.78
  6. Step 6: Final answer
    x = 27,619.58

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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.