Home / 15,672.56-23,508.93-3,985.79

Finding the Fourth Proportional to 15,672.56, 23,508.93 and 3,985.79

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Solution

The fourth proportional to 15,672.56, 23,508.93 and 3,985.79 is: 5,978.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,672.56 : 23,508.93 = 3,985.79 : x
  2. Step 2: Convert to fraction form
    15,672.56/23,508.93 = 3,985.79/x
  3. Step 3: Cross multiply
    15,672.56x = 23,508.93 × 3,985.79
  4. Step 4: Simplify right side
    15,672.56x = 93,701,658.10
  5. Step 5: Solve for x
    x = 93,701,658.10/15,672.56
  6. Step 6: Final answer
    x = 5,978.71

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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.