Home / 28,790.07-43,190.91-12,150.12

Finding the Fourth Proportional to 28,790.07, 43,190.91 and 12,150.12

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Solution

The fourth proportional to 28,790.07, 43,190.91 and 12,150.12 is: 18,227.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790.07 : 43,190.91 = 12,150.12 : x
  2. Step 2: Convert to fraction form
    28,790.07/43,190.91 = 12,150.12/x
  3. Step 3: Cross multiply
    28,790.07x = 43,190.91 × 12,150.12
  4. Step 4: Simplify right side
    28,790.07x = 524,774,739.41
  5. Step 5: Solve for x
    x = 524,774,739.41/28,790.07
  6. Step 6: Final answer
    x = 18,227.63

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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.