Home / 28,718.98-39,635.13-16,786.18

Finding the Fourth Proportional to 28,718.98, 39,635.13 and 16,786.18

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Solution

The fourth proportional to 28,718.98, 39,635.13 and 16,786.18 is: 23,166.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,718.98 : 39,635.13 = 16,786.18 : x
  2. Step 2: Convert to fraction form
    28,718.98/39,635.13 = 16,786.18/x
  3. Step 3: Cross multiply
    28,718.98x = 39,635.13 × 16,786.18
  4. Step 4: Simplify right side
    28,718.98x = 665,322,426.50
  5. Step 5: Solve for x
    x = 665,322,426.50/28,718.98
  6. Step 6: Final answer
    x = 23,166.65

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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.