Home / 15,929.78-23,898.24-5,399.18

Finding the Fourth Proportional to 15,929.78, 23,898.24 and 5,399.18

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Solution

The fourth proportional to 15,929.78, 23,898.24 and 5,399.18 is: 8,099.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,929.78 : 23,898.24 = 5,399.18 : x
  2. Step 2: Convert to fraction form
    15,929.78/23,898.24 = 5,399.18/x
  3. Step 3: Cross multiply
    15,929.78x = 23,898.24 × 5,399.18
  4. Step 4: Simplify right side
    15,929.78x = 129,030,899.44
  5. Step 5: Solve for x
    x = 129,030,899.44/15,929.78
  6. Step 6: Final answer
    x = 8,099.98

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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.