Home / 33,630.79-46,409.22-20,209.45

Finding the Fourth Proportional to 33,630.79, 46,409.22 and 20,209.45

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Solution

The fourth proportional to 33,630.79, 46,409.22 and 20,209.45 is: 27,888.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,630.79 : 46,409.22 = 20,209.45 : x
  2. Step 2: Convert to fraction form
    33,630.79/46,409.22 = 20,209.45/x
  3. Step 3: Cross multiply
    33,630.79x = 46,409.22 × 20,209.45
  4. Step 4: Simplify right side
    33,630.79x = 937,904,770.89
  5. Step 5: Solve for x
    x = 937,904,770.89/33,630.79
  6. Step 6: Final answer
    x = 27,888.27

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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.