Home / 31,651.93-43,683.80-18,223.75

Finding the Fourth Proportional to 31,651.93, 43,683.80 and 18,223.75

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Solution

The fourth proportional to 31,651.93, 43,683.80 and 18,223.75 is: 25,151.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,651.93 : 43,683.80 = 18,223.75 : x
  2. Step 2: Convert to fraction form
    31,651.93/43,683.80 = 18,223.75/x
  3. Step 3: Cross multiply
    31,651.93x = 43,683.80 × 18,223.75
  4. Step 4: Simplify right side
    31,651.93x = 796,082,650.25
  5. Step 5: Solve for x
    x = 796,082,650.25/31,651.93
  6. Step 6: Final answer
    x = 25,151.16

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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.