Home / 20,601.69-31,056.94-19,228.48

Finding the Fourth Proportional to 20,601.69, 31,056.94 and 19,228.48

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Solution

The fourth proportional to 20,601.69, 31,056.94 and 19,228.48 is: 28,986.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601.69 : 31,056.94 = 19,228.48 : x
  2. Step 2: Convert to fraction form
    20,601.69/31,056.94 = 19,228.48/x
  3. Step 3: Cross multiply
    20,601.69x = 31,056.94 × 19,228.48
  4. Step 4: Simplify right side
    20,601.69x = 597,177,783.65
  5. Step 5: Solve for x
    x = 597,177,783.65/20,601.69
  6. Step 6: Final answer
    x = 28,986.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.