Home / 28,795.80-43,198.32-12,158.30

Finding the Fourth Proportional to 28,795.80, 43,198.32 and 12,158.30

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Solution

The fourth proportional to 28,795.80, 43,198.32 and 12,158.30 is: 18,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,795.80 : 43,198.32 = 12,158.30 : x
  2. Step 2: Convert to fraction form
    28,795.80/43,198.32 = 12,158.30/x
  3. Step 3: Cross multiply
    28,795.80x = 43,198.32 × 12,158.30
  4. Step 4: Simplify right side
    28,795.80x = 525,218,134.06
  5. Step 5: Solve for x
    x = 525,218,134.06/28,795.80
  6. Step 6: Final answer
    x = 18,239.40

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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.