Home / 31,821.21-43,914.83-17,673.75

Finding the Fourth Proportional to 31,821.21, 43,914.83 and 17,673.75

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Solution

The fourth proportional to 31,821.21, 43,914.83 and 17,673.75 is: 24,390.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,821.21 : 43,914.83 = 17,673.75 : x
  2. Step 2: Convert to fraction form
    31,821.21/43,914.83 = 17,673.75/x
  3. Step 3: Cross multiply
    31,821.21x = 43,914.83 × 17,673.75
  4. Step 4: Simplify right side
    31,821.21x = 776,139,638.34
  5. Step 5: Solve for x
    x = 776,139,638.34/31,821.21
  6. Step 6: Final answer
    x = 24,390.64

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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.