Home / 28,784.06-43,181.90-12,144.13

Finding the Fourth Proportional to 28,784.06, 43,181.90 and 12,144.13

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Solution

The fourth proportional to 28,784.06, 43,181.90 and 12,144.13 is: 18,218.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,784.06 : 43,181.90 = 12,144.13 : x
  2. Step 2: Convert to fraction form
    28,784.06/43,181.90 = 12,144.13/x
  3. Step 3: Cross multiply
    28,784.06x = 43,181.90 × 12,144.13
  4. Step 4: Simplify right side
    28,784.06x = 524,406,529.65
  5. Step 5: Solve for x
    x = 524,406,529.65/28,784.06
  6. Step 6: Final answer
    x = 18,218.65

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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.