Home / 15,916.78-23,873.30-4,230.90

Finding the Fourth Proportional to 15,916.78, 23,873.30 and 4,230.90

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Solution

The fourth proportional to 15,916.78, 23,873.30 and 4,230.90 is: 6,345.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,916.78 : 23,873.30 = 4,230.90 : x
  2. Step 2: Convert to fraction form
    15,916.78/23,873.30 = 4,230.90/x
  3. Step 3: Cross multiply
    15,916.78x = 23,873.30 × 4,230.90
  4. Step 4: Simplify right side
    15,916.78x = 101,005,544.97
  5. Step 5: Solve for x
    x = 101,005,544.97/15,916.78
  6. Step 6: Final answer
    x = 6,345.85

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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.