Home / 30,049.53-41,478.21-21,099.27

Finding the Fourth Proportional to 30,049.53, 41,478.21 and 21,099.27

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Solution

The fourth proportional to 30,049.53, 41,478.21 and 21,099.27 is: 29,123.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,049.53 : 41,478.21 = 21,099.27 : x
  2. Step 2: Convert to fraction form
    30,049.53/41,478.21 = 21,099.27/x
  3. Step 3: Cross multiply
    30,049.53x = 41,478.21 × 21,099.27
  4. Step 4: Simplify right side
    30,049.53x = 875,159,951.91
  5. Step 5: Solve for x
    x = 875,159,951.91/30,049.53
  6. Step 6: Final answer
    x = 29,123.91

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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.