Home / 19,865.46-27,406.48-12,795.99

Finding the Fourth Proportional to 19,865.46, 27,406.48 and 12,795.99

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Solution

The fourth proportional to 19,865.46, 27,406.48 and 12,795.99 is: 17,653.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.46 : 27,406.48 = 12,795.99 : x
  2. Step 2: Convert to fraction form
    19,865.46/27,406.48 = 12,795.99/x
  3. Step 3: Cross multiply
    19,865.46x = 27,406.48 × 12,795.99
  4. Step 4: Simplify right side
    19,865.46x = 350,693,044.02
  5. Step 5: Solve for x
    x = 350,693,044.02/19,865.46
  6. Step 6: Final answer
    x = 17,653.41

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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.