Home / 33,387.20-46,091.04-20,818.88

Finding the Fourth Proportional to 33,387.20, 46,091.04 and 20,818.88

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Solution

The fourth proportional to 33,387.20, 46,091.04 and 20,818.88 is: 28,740.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,387.20 : 46,091.04 = 20,818.88 : x
  2. Step 2: Convert to fraction form
    33,387.20/46,091.04 = 20,818.88/x
  3. Step 3: Cross multiply
    33,387.20x = 46,091.04 × 20,818.88
  4. Step 4: Simplify right side
    33,387.20x = 959,563,830.84
  5. Step 5: Solve for x
    x = 959,563,830.84/33,387.20
  6. Step 6: Final answer
    x = 28,740.47

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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.