Home / 28,835.32-39,767.89-18,760.09

Finding the Fourth Proportional to 28,835.32, 39,767.89 and 18,760.09

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Solution

The fourth proportional to 28,835.32, 39,767.89 and 18,760.09 is: 25,872.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,835.32 : 39,767.89 = 18,760.09 : x
  2. Step 2: Convert to fraction form
    28,835.32/39,767.89 = 18,760.09/x
  3. Step 3: Cross multiply
    28,835.32x = 39,767.89 × 18,760.09
  4. Step 4: Simplify right side
    28,835.32x = 746,049,195.51
  5. Step 5: Solve for x
    x = 746,049,195.51/28,835.32
  6. Step 6: Final answer
    x = 25,872.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.