Home / 31,455.80-43,409.48-18,028.23

Finding the Fourth Proportional to 31,455.80, 43,409.48 and 18,028.23

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Solution

The fourth proportional to 31,455.80, 43,409.48 and 18,028.23 is: 24,879.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455.80 : 43,409.48 = 18,028.23 : x
  2. Step 2: Convert to fraction form
    31,455.80/43,409.48 = 18,028.23/x
  3. Step 3: Cross multiply
    31,455.80x = 43,409.48 × 18,028.23
  4. Step 4: Simplify right side
    31,455.80x = 782,596,089.62
  5. Step 5: Solve for x
    x = 782,596,089.62/31,455.80
  6. Step 6: Final answer
    x = 24,879.23

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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.