Home / 20,802.80-28,705.92-11,852.48

Finding the Fourth Proportional to 20,802.80, 28,705.92 and 11,852.48

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Solution

The fourth proportional to 20,802.80, 28,705.92 and 11,852.48 is: 16,355.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802.80 : 28,705.92 = 11,852.48 : x
  2. Step 2: Convert to fraction form
    20,802.80/28,705.92 = 11,852.48/x
  3. Step 3: Cross multiply
    20,802.80x = 28,705.92 × 11,852.48
  4. Step 4: Simplify right side
    20,802.80x = 340,236,342.68
  5. Step 5: Solve for x
    x = 340,236,342.68/20,802.80
  6. Step 6: Final answer
    x = 16,355.31

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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.