Home / 19,428.20-29,099.10-10,183.40

Finding the Fourth Proportional to 19,428.20, 29,099.10 and 10,183.40

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Solution

The fourth proportional to 19,428.20, 29,099.10 and 10,183.40 is: 15,252.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.20 : 29,099.10 = 10,183.40 : x
  2. Step 2: Convert to fraction form
    19,428.20/29,099.10 = 10,183.40/x
  3. Step 3: Cross multiply
    19,428.20x = 29,099.10 × 10,183.40
  4. Step 4: Simplify right side
    19,428.20x = 296,327,774.94
  5. Step 5: Solve for x
    x = 296,327,774.94/19,428.20
  6. Step 6: Final answer
    x = 15,252.46

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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.