Home / 28,825.93-39,734.31-21,247.98

Finding the Fourth Proportional to 28,825.93, 39,734.31 and 21,247.98

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Solution

The fourth proportional to 28,825.93, 39,734.31 and 21,247.98 is: 29,288.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,825.93 : 39,734.31 = 21,247.98 : x
  2. Step 2: Convert to fraction form
    28,825.93/39,734.31 = 21,247.98/x
  3. Step 3: Cross multiply
    28,825.93x = 39,734.31 × 21,247.98
  4. Step 4: Simplify right side
    28,825.93x = 844,273,824.19
  5. Step 5: Solve for x
    x = 844,273,824.19/28,825.93
  6. Step 6: Final answer
    x = 29,288.69

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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.