Home / 33,985.40-50,966.48-12,920.36

Finding the Fourth Proportional to 33,985.40, 50,966.48 and 12,920.36

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Solution

The fourth proportional to 33,985.40, 50,966.48 and 12,920.36 is: 19,376.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,985.40 : 50,966.48 = 12,920.36 : x
  2. Step 2: Convert to fraction form
    33,985.40/50,966.48 = 12,920.36/x
  3. Step 3: Cross multiply
    33,985.40x = 50,966.48 × 12,920.36
  4. Step 4: Simplify right side
    33,985.40x = 658,505,269.53
  5. Step 5: Solve for x
    x = 658,505,269.53/33,985.40
  6. Step 6: Final answer
    x = 19,376.12

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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.