Home / 28,611.09-39,474.14-16,509.69

Finding the Fourth Proportional to 28,611.09, 39,474.14 and 16,509.69

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Solution

The fourth proportional to 28,611.09, 39,474.14 and 16,509.69 is: 22,778.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,611.09 : 39,474.14 = 16,509.69 : x
  2. Step 2: Convert to fraction form
    28,611.09/39,474.14 = 16,509.69/x
  3. Step 3: Cross multiply
    28,611.09x = 39,474.14 × 16,509.69
  4. Step 4: Simplify right side
    28,611.09x = 651,705,731.87
  5. Step 5: Solve for x
    x = 651,705,731.87/28,611.09
  6. Step 6: Final answer
    x = 22,778.08

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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.