Home / 28,830.24-43,251.21-12,190.23

Finding the Fourth Proportional to 28,830.24, 43,251.21 and 12,190.23

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Solution

The fourth proportional to 28,830.24, 43,251.21 and 12,190.23 is: 18,287.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.24 : 43,251.21 = 12,190.23 : x
  2. Step 2: Convert to fraction form
    28,830.24/43,251.21 = 12,190.23/x
  3. Step 3: Cross multiply
    28,830.24x = 43,251.21 × 12,190.23
  4. Step 4: Simplify right side
    28,830.24x = 527,242,197.68
  5. Step 5: Solve for x
    x = 527,242,197.68/28,830.24
  6. Step 6: Final answer
    x = 18,287.82

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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.