Home / 28,544.40-39,390.84-15,969.15

Finding the Fourth Proportional to 28,544.40, 39,390.84 and 15,969.15

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Solution

The fourth proportional to 28,544.40, 39,390.84 and 15,969.15 is: 22,037.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,544.40 : 39,390.84 = 15,969.15 : x
  2. Step 2: Convert to fraction form
    28,544.40/39,390.84 = 15,969.15/x
  3. Step 3: Cross multiply
    28,544.40x = 39,390.84 × 15,969.15
  4. Step 4: Simplify right side
    28,544.40x = 629,038,232.59
  5. Step 5: Solve for x
    x = 629,038,232.59/28,544.40
  6. Step 6: Final answer
    x = 22,037.19

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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.