Home / 17,231.65-23,777.89-9,678.80

Finding the Fourth Proportional to 17,231.65, 23,777.89 and 9,678.80

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Solution

The fourth proportional to 17,231.65, 23,777.89 and 9,678.80 is: 13,355.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,231.65 : 23,777.89 = 9,678.80 : x
  2. Step 2: Convert to fraction form
    17,231.65/23,777.89 = 9,678.80/x
  3. Step 3: Cross multiply
    17,231.65x = 23,777.89 × 9,678.80
  4. Step 4: Simplify right side
    17,231.65x = 230,141,441.73
  5. Step 5: Solve for x
    x = 230,141,441.73/17,231.65
  6. Step 6: Final answer
    x = 13,355.74

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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.