Home / 28,767.36-39,694.32-18,162.72

Finding the Fourth Proportional to 28,767.36, 39,694.32 and 18,162.72

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Solution

The fourth proportional to 28,767.36, 39,694.32 and 18,162.72 is: 25,061.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,767.36 : 39,694.32 = 18,162.72 : x
  2. Step 2: Convert to fraction form
    28,767.36/39,694.32 = 18,162.72/x
  3. Step 3: Cross multiply
    28,767.36x = 39,694.32 × 18,162.72
  4. Step 4: Simplify right side
    28,767.36x = 720,956,819.75
  5. Step 5: Solve for x
    x = 720,956,819.75/28,767.36
  6. Step 6: Final answer
    x = 25,061.63

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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.