Home / 31,683.18-43,728.21-18,252.03

Finding the Fourth Proportional to 31,683.18, 43,728.21 and 18,252.03

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Solution

The fourth proportional to 31,683.18, 43,728.21 and 18,252.03 is: 25,190.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,683.18 : 43,728.21 = 18,252.03 : x
  2. Step 2: Convert to fraction form
    31,683.18/43,728.21 = 18,252.03/x
  3. Step 3: Cross multiply
    31,683.18x = 43,728.21 × 18,252.03
  4. Step 4: Simplify right side
    31,683.18x = 798,128,600.77
  5. Step 5: Solve for x
    x = 798,128,600.77/31,683.18
  6. Step 6: Final answer
    x = 25,190.92

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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.