Home / 20,769.36-31,004.45-19,293.14

Finding the Fourth Proportional to 20,769.36, 31,004.45 and 19,293.14

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Solution

The fourth proportional to 20,769.36, 31,004.45 and 19,293.14 is: 28,800.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,769.36 : 31,004.45 = 19,293.14 : x
  2. Step 2: Convert to fraction form
    20,769.36/31,004.45 = 19,293.14/x
  3. Step 3: Cross multiply
    20,769.36x = 31,004.45 × 19,293.14
  4. Step 4: Simplify right side
    20,769.36x = 598,172,942.99
  5. Step 5: Solve for x
    x = 598,172,942.99/20,769.36
  6. Step 6: Final answer
    x = 28,800.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.