Home / 33,570.20-46,315.34-20,818.80

Finding the Fourth Proportional to 33,570.20, 46,315.34 and 20,818.80

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Solution

The fourth proportional to 33,570.20, 46,315.34 and 20,818.80 is: 28,722.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,570.20 : 46,315.34 = 20,818.80 : x
  2. Step 2: Convert to fraction form
    33,570.20/46,315.34 = 20,818.80/x
  3. Step 3: Cross multiply
    33,570.20x = 46,315.34 × 20,818.80
  4. Step 4: Simplify right side
    33,570.20x = 964,229,800.39
  5. Step 5: Solve for x
    x = 964,229,800.39/33,570.20
  6. Step 6: Final answer
    x = 28,722.79

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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.