Home / 28,786.07-43,184.97-12,146.10

Finding the Fourth Proportional to 28,786.07, 43,184.97 and 12,146.10

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Solution

The fourth proportional to 28,786.07, 43,184.97 and 12,146.10 is: 18,221.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,786.07 : 43,184.97 = 12,146.10 : x
  2. Step 2: Convert to fraction form
    28,786.07/43,184.97 = 12,146.10/x
  3. Step 3: Cross multiply
    28,786.07x = 43,184.97 × 12,146.10
  4. Step 4: Simplify right side
    28,786.07x = 524,528,964.12
  5. Step 5: Solve for x
    x = 524,528,964.12/28,786.07
  6. Step 6: Final answer
    x = 18,221.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.