Home / 28,784.65-43,182.87-12,144.73

Finding the Fourth Proportional to 28,784.65, 43,182.87 and 12,144.73

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Solution

The fourth proportional to 28,784.65, 43,182.87 and 12,144.73 is: 18,219.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,784.65 : 43,182.87 = 12,144.73 : x
  2. Step 2: Convert to fraction form
    28,784.65/43,182.87 = 12,144.73/x
  3. Step 3: Cross multiply
    28,784.65x = 43,182.87 × 12,144.73
  4. Step 4: Simplify right side
    28,784.65x = 524,444,296.78
  5. Step 5: Solve for x
    x = 524,444,296.78/28,784.65
  6. Step 6: Final answer
    x = 18,219.58

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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.