Home / 28,544.31-39,391.11-15,969.06

Finding the Fourth Proportional to 28,544.31, 39,391.11 and 15,969.06

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Solution

The fourth proportional to 28,544.31, 39,391.11 and 15,969.06 is: 22,037.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,544.31 : 39,391.11 = 15,969.06 : x
  2. Step 2: Convert to fraction form
    28,544.31/39,391.11 = 15,969.06/x
  3. Step 3: Cross multiply
    28,544.31x = 39,391.11 × 15,969.06
  4. Step 4: Simplify right side
    28,544.31x = 629,038,999.06
  5. Step 5: Solve for x
    x = 629,038,999.06/28,544.31
  6. Step 6: Final answer
    x = 22,037.28

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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.