Home / 31,803.56-43,890.46-18,376.60

Finding the Fourth Proportional to 31,803.56, 43,890.46 and 18,376.60

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Solution

The fourth proportional to 31,803.56, 43,890.46 and 18,376.60 is: 25,360.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,803.56 : 43,890.46 = 18,376.60 : x
  2. Step 2: Convert to fraction form
    31,803.56/43,890.46 = 18,376.60/x
  3. Step 3: Cross multiply
    31,803.56x = 43,890.46 × 18,376.60
  4. Step 4: Simplify right side
    31,803.56x = 806,557,427.24
  5. Step 5: Solve for x
    x = 806,557,427.24/31,803.56
  6. Step 6: Final answer
    x = 25,360.60

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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.