Home / 20,802.83-28,705.87-11,849.63

Finding the Fourth Proportional to 20,802.83, 28,705.87 and 11,849.63

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Solution

The fourth proportional to 20,802.83, 28,705.87 and 11,849.63 is: 16,351.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802.83 : 28,705.87 = 11,849.63 : x
  2. Step 2: Convert to fraction form
    20,802.83/28,705.87 = 11,849.63/x
  3. Step 3: Cross multiply
    20,802.83x = 28,705.87 × 11,849.63
  4. Step 4: Simplify right side
    20,802.83x = 340,153,938.33
  5. Step 5: Solve for x
    x = 340,153,938.33/20,802.83
  6. Step 6: Final answer
    x = 16,351.33

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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.