Home / 23,023.80-31,731.84-19,828.80

Finding the Fourth Proportional to 23,023.80, 31,731.84 and 19,828.80

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Solution

The fourth proportional to 23,023.80, 31,731.84 and 19,828.80 is: 27,328.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,023.80 : 31,731.84 = 19,828.80 : x
  2. Step 2: Convert to fraction form
    23,023.80/31,731.84 = 19,828.80/x
  3. Step 3: Cross multiply
    23,023.80x = 31,731.84 × 19,828.80
  4. Step 4: Simplify right side
    23,023.80x = 629,204,308.99
  5. Step 5: Solve for x
    x = 629,204,308.99/23,023.80
  6. Step 6: Final answer
    x = 27,328.43

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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.