Home / 28,760.95-39,690.03-16,185.70

Finding the Fourth Proportional to 28,760.95, 39,690.03 and 16,185.70

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Solution

The fourth proportional to 28,760.95, 39,690.03 and 16,185.70 is: 22,336.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,760.95 : 39,690.03 = 16,185.70 : x
  2. Step 2: Convert to fraction form
    28,760.95/39,690.03 = 16,185.70/x
  3. Step 3: Cross multiply
    28,760.95x = 39,690.03 × 16,185.70
  4. Step 4: Simplify right side
    28,760.95x = 642,410,918.57
  5. Step 5: Solve for x
    x = 642,410,918.57/28,760.95
  6. Step 6: Final answer
    x = 22,336.22

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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.