Home / 22,085.20-33,129.60-6,290.20

Finding the Fourth Proportional to 22,085.20, 33,129.60 and 6,290.20

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Solution

The fourth proportional to 22,085.20, 33,129.60 and 6,290.20 is: 9,435.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,085.20 : 33,129.60 = 6,290.20 : x
  2. Step 2: Convert to fraction form
    22,085.20/33,129.60 = 6,290.20/x
  3. Step 3: Cross multiply
    22,085.20x = 33,129.60 × 6,290.20
  4. Step 4: Simplify right side
    22,085.20x = 208,391,809.92
  5. Step 5: Solve for x
    x = 208,391,809.92/22,085.20
  6. Step 6: Final answer
    x = 9,435.81

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1.5x scale

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.