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Finding the Fourth Proportional to 33,980.40, 50,991.36 and 21,483.18

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Solution

The fourth proportional to 33,980.40, 50,991.36 and 21,483.18 is: 32,237.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,980.40 : 50,991.36 = 21,483.18 : x
  2. Step 2: Convert to fraction form
    33,980.40/50,991.36 = 21,483.18/x
  3. Step 3: Cross multiply
    33,980.40x = 50,991.36 × 21,483.18
  4. Step 4: Simplify right side
    33,980.40x = 1,095,456,565.32
  5. Step 5: Solve for x
    x = 1,095,456,565.32/33,980.40
  6. Step 6: Final answer
    x = 32,237.89

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1.5x scale

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.