Home / 31,980.20-44,131.58-17,640.60

Finding the Fourth Proportional to 31,980.20, 44,131.58 and 17,640.60

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Solution

The fourth proportional to 31,980.20, 44,131.58 and 17,640.60 is: 24,343.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,980.20 : 44,131.58 = 17,640.60 : x
  2. Step 2: Convert to fraction form
    31,980.20/44,131.58 = 17,640.60/x
  3. Step 3: Cross multiply
    31,980.20x = 44,131.58 × 17,640.60
  4. Step 4: Simplify right side
    31,980.20x = 778,507,550.15
  5. Step 5: Solve for x
    x = 778,507,550.15/31,980.20
  6. Step 6: Final answer
    x = 24,343.42

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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.