Home / 31,391.55-43,323.02-17,782.02

Finding the Fourth Proportional to 31,391.55, 43,323.02 and 17,782.02

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Solution

The fourth proportional to 31,391.55, 43,323.02 and 17,782.02 is: 24,540.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,391.55 : 43,323.02 = 17,782.02 : x
  2. Step 2: Convert to fraction form
    31,391.55/43,323.02 = 17,782.02/x
  3. Step 3: Cross multiply
    31,391.55x = 43,323.02 × 17,782.02
  4. Step 4: Simplify right side
    31,391.55x = 770,370,808.10
  5. Step 5: Solve for x
    x = 770,370,808.10/31,391.55
  6. Step 6: Final answer
    x = 24,540.71

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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.