Home / 33,420.98-46,116.57-19,987.34

Finding the Fourth Proportional to 33,420.98, 46,116.57 and 19,987.34

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Solution

The fourth proportional to 33,420.98, 46,116.57 and 19,987.34 is: 27,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,420.98 : 46,116.57 = 19,987.34 : x
  2. Step 2: Convert to fraction form
    33,420.98/46,116.57 = 19,987.34/x
  3. Step 3: Cross multiply
    33,420.98x = 46,116.57 × 19,987.34
  4. Step 4: Simplify right side
    33,420.98x = 921,747,258.69
  5. Step 5: Solve for x
    x = 921,747,258.69/33,420.98
  6. Step 6: Final answer
    x = 27,579.90

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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.