Home / 30,085.28-41,474.20-21,104.92

Finding the Fourth Proportional to 30,085.28, 41,474.20 and 21,104.92

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Solution

The fourth proportional to 30,085.28, 41,474.20 and 21,104.92 is: 29,094.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,085.28 : 41,474.20 = 21,104.92 : x
  2. Step 2: Convert to fraction form
    30,085.28/41,474.20 = 21,104.92/x
  3. Step 3: Cross multiply
    30,085.28x = 41,474.20 × 21,104.92
  4. Step 4: Simplify right side
    30,085.28x = 875,309,673.06
  5. Step 5: Solve for x
    x = 875,309,673.06/30,085.28
  6. Step 6: Final answer
    x = 29,094.28

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Double scale
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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.