Home / 28,668.96-39,562.65-15,922.17

Finding the Fourth Proportional to 28,668.96, 39,562.65 and 15,922.17

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Solution

The fourth proportional to 28,668.96, 39,562.65 and 15,922.17 is: 21,972.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,668.96 : 39,562.65 = 15,922.17 : x
  2. Step 2: Convert to fraction form
    28,668.96/39,562.65 = 15,922.17/x
  3. Step 3: Cross multiply
    28,668.96x = 39,562.65 × 15,922.17
  4. Step 4: Simplify right side
    28,668.96x = 629,923,238.95
  5. Step 5: Solve for x
    x = 629,923,238.95/28,668.96
  6. Step 6: Final answer
    x = 21,972.31

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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.