Home / 28,725.65-43,107.61-13,935.66

Finding the Fourth Proportional to 28,725.65, 43,107.61 and 13,935.66

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Solution

The fourth proportional to 28,725.65, 43,107.61 and 13,935.66 is: 20,912.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.65 : 43,107.61 = 13,935.66 : x
  2. Step 2: Convert to fraction form
    28,725.65/43,107.61 = 13,935.66/x
  3. Step 3: Cross multiply
    28,725.65x = 43,107.61 × 13,935.66
  4. Step 4: Simplify right side
    28,725.65x = 600,732,996.37
  5. Step 5: Solve for x
    x = 600,732,996.37/28,725.65
  6. Step 6: Final answer
    x = 20,912.77

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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.