Home / 28,073.99-38,695.94-19,900.33

Finding the Fourth Proportional to 28,073.99, 38,695.94 and 19,900.33

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Solution

The fourth proportional to 28,073.99, 38,695.94 and 19,900.33 is: 27,429.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,073.99 : 38,695.94 = 19,900.33 : x
  2. Step 2: Convert to fraction form
    28,073.99/38,695.94 = 19,900.33/x
  3. Step 3: Cross multiply
    28,073.99x = 38,695.94 × 19,900.33
  4. Step 4: Simplify right side
    28,073.99x = 770,061,965.98
  5. Step 5: Solve for x
    x = 770,061,965.98/28,073.99
  6. Step 6: Final answer
    x = 27,429.73

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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.