Home / 20,900.49-31,464.77-19,063.41

Finding the Fourth Proportional to 20,900.49, 31,464.77 and 19,063.41

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Solution

The fourth proportional to 20,900.49, 31,464.77 and 19,063.41 is: 28,699.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,900.49 : 31,464.77 = 19,063.41 : x
  2. Step 2: Convert to fraction form
    20,900.49/31,464.77 = 19,063.41/x
  3. Step 3: Cross multiply
    20,900.49x = 31,464.77 × 19,063.41
  4. Step 4: Simplify right side
    20,900.49x = 599,825,715.75
  5. Step 5: Solve for x
    x = 599,825,715.75/20,900.49
  6. Step 6: Final answer
    x = 28,699.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.