Home / 28,790.07-43,166.55-12,145.65

Finding the Fourth Proportional to 28,790.07, 43,166.55 and 12,145.65

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Solution

The fourth proportional to 28,790.07, 43,166.55 and 12,145.65 is: 18,210.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790.07 : 43,166.55 = 12,145.65 : x
  2. Step 2: Convert to fraction form
    28,790.07/43,166.55 = 12,145.65/x
  3. Step 3: Cross multiply
    28,790.07x = 43,166.55 × 12,145.65
  4. Step 4: Simplify right side
    28,790.07x = 524,285,808.01
  5. Step 5: Solve for x
    x = 524,285,808.01/28,790.07
  6. Step 6: Final answer
    x = 18,210.65

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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.