Home / 19,780.65-27,296.93-10,827.99

Finding the Fourth Proportional to 19,780.65, 27,296.93 and 10,827.99

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Solution

The fourth proportional to 19,780.65, 27,296.93 and 10,827.99 is: 14,942.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780.65 : 27,296.93 = 10,827.99 : x
  2. Step 2: Convert to fraction form
    19,780.65/27,296.93 = 10,827.99/x
  3. Step 3: Cross multiply
    19,780.65x = 27,296.93 × 10,827.99
  4. Step 4: Simplify right side
    19,780.65x = 295,570,912.14
  5. Step 5: Solve for x
    x = 295,570,912.14/19,780.65
  6. Step 6: Final answer
    x = 14,942.43

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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.