Home / 30,049.62-41,477.13-21,099.30

Finding the Fourth Proportional to 30,049.62, 41,477.13 and 21,099.30

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Solution

The fourth proportional to 30,049.62, 41,477.13 and 21,099.30 is: 29,123.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,049.62 : 41,477.13 = 21,099.30 : x
  2. Step 2: Convert to fraction form
    30,049.62/41,477.13 = 21,099.30/x
  3. Step 3: Cross multiply
    30,049.62x = 41,477.13 × 21,099.30
  4. Step 4: Simplify right side
    30,049.62x = 875,138,409.01
  5. Step 5: Solve for x
    x = 875,138,409.01/30,049.62
  6. Step 6: Final answer
    x = 29,123.11

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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.