Home / 20,338.74-28,071.09-14,765.94

Finding the Fourth Proportional to 20,338.74, 28,071.09 and 14,765.94

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Solution

The fourth proportional to 20,338.74, 28,071.09 and 14,765.94 is: 20,379.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,338.74 : 28,071.09 = 14,765.94 : x
  2. Step 2: Convert to fraction form
    20,338.74/28,071.09 = 14,765.94/x
  3. Step 3: Cross multiply
    20,338.74x = 28,071.09 × 14,765.94
  4. Step 4: Simplify right side
    20,338.74x = 414,496,030.67
  5. Step 5: Solve for x
    x = 414,496,030.67/20,338.74
  6. Step 6: Final answer
    x = 20,379.63

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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.