Home / 28,790.16-43,185.40-8,013.68

Finding the Fourth Proportional to 28,790.16, 43,185.40 and 8,013.68

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Solution

The fourth proportional to 28,790.16, 43,185.40 and 8,013.68 is: 12,020.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790.16 : 43,185.40 = 8,013.68 : x
  2. Step 2: Convert to fraction form
    28,790.16/43,185.40 = 8,013.68/x
  3. Step 3: Cross multiply
    28,790.16x = 43,185.40 × 8,013.68
  4. Step 4: Simplify right side
    28,790.16x = 346,073,976.27
  5. Step 5: Solve for x
    x = 346,073,976.27/28,790.16
  6. Step 6: Final answer
    x = 12,020.56

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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.