Home / 31,544.44-43,517.58-20,775.40

Finding the Fourth Proportional to 31,544.44, 43,517.58 and 20,775.40

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Solution

The fourth proportional to 31,544.44, 43,517.58 and 20,775.40 is: 28,661.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,544.44 : 43,517.58 = 20,775.40 : x
  2. Step 2: Convert to fraction form
    31,544.44/43,517.58 = 20,775.40/x
  3. Step 3: Cross multiply
    31,544.44x = 43,517.58 × 20,775.40
  4. Step 4: Simplify right side
    31,544.44x = 904,095,131.53
  5. Step 5: Solve for x
    x = 904,095,131.53/31,544.44
  6. Step 6: Final answer
    x = 28,661.00

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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.