Home / 30,305.57-41,758.20-28,203.21

Finding the Fourth Proportional to 30,305.57, 41,758.20 and 28,203.21

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Solution

The fourth proportional to 30,305.57, 41,758.20 and 28,203.21 is: 38,861.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,305.57 : 41,758.20 = 28,203.21 : x
  2. Step 2: Convert to fraction form
    30,305.57/41,758.20 = 28,203.21/x
  3. Step 3: Cross multiply
    30,305.57x = 41,758.20 × 28,203.21
  4. Step 4: Simplify right side
    30,305.57x = 1,177,715,283.82
  5. Step 5: Solve for x
    x = 1,177,715,283.82/30,305.57
  6. Step 6: Final answer
    x = 38,861.35

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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.