Home / 20,764.69-31,096.14-18,767.77

Finding the Fourth Proportional to 20,764.69, 31,096.14 and 18,767.77

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Solution

The fourth proportional to 20,764.69, 31,096.14 and 18,767.77 is: 28,105.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764.69 : 31,096.14 = 18,767.77 : x
  2. Step 2: Convert to fraction form
    20,764.69/31,096.14 = 18,767.77/x
  3. Step 3: Cross multiply
    20,764.69x = 31,096.14 × 18,767.77
  4. Step 4: Simplify right side
    20,764.69x = 583,605,055.29
  5. Step 5: Solve for x
    x = 583,605,055.29/20,764.69
  6. Step 6: Final answer
    x = 28,105.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.