Home / 33,002.48-45,539.34-21,072.80

Finding the Fourth Proportional to 33,002.48, 45,539.34 and 21,072.80

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Solution

The fourth proportional to 33,002.48, 45,539.34 and 21,072.80 is: 29,077.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,002.48 : 45,539.34 = 21,072.80 : x
  2. Step 2: Convert to fraction form
    33,002.48/45,539.34 = 21,072.80/x
  3. Step 3: Cross multiply
    33,002.48x = 45,539.34 × 21,072.80
  4. Step 4: Simplify right side
    33,002.48x = 959,641,403.95
  5. Step 5: Solve for x
    x = 959,641,403.95/33,002.48
  6. Step 6: Final answer
    x = 29,077.86

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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.