Home / 31,558.44-43,538.40-18,124.80

Finding the Fourth Proportional to 31,558.44, 43,538.40 and 18,124.80

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Solution

The fourth proportional to 31,558.44, 43,538.40 and 18,124.80 is: 25,005.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,558.44 : 43,538.40 = 18,124.80 : x
  2. Step 2: Convert to fraction form
    31,558.44/43,538.40 = 18,124.80/x
  3. Step 3: Cross multiply
    31,558.44x = 43,538.40 × 18,124.80
  4. Step 4: Simplify right side
    31,558.44x = 789,124,792.32
  5. Step 5: Solve for x
    x = 789,124,792.32/31,558.44
  6. Step 6: Final answer
    x = 25,005.19

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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.