Home / 27,162.46-37,485.62-15,678.89

Finding the Fourth Proportional to 27,162.46, 37,485.62 and 15,678.89

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Solution

The fourth proportional to 27,162.46, 37,485.62 and 15,678.89 is: 21,637.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,162.46 : 37,485.62 = 15,678.89 : x
  2. Step 2: Convert to fraction form
    27,162.46/37,485.62 = 15,678.89/x
  3. Step 3: Cross multiply
    27,162.46x = 37,485.62 × 15,678.89
  4. Step 4: Simplify right side
    27,162.46x = 587,732,912.56
  5. Step 5: Solve for x
    x = 587,732,912.56/27,162.46
  6. Step 6: Final answer
    x = 21,637.69

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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.