Home / 19,720.58-29,573.56-5,675.86

Finding the Fourth Proportional to 19,720.58, 29,573.56 and 5,675.86

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Solution

The fourth proportional to 19,720.58, 29,573.56 and 5,675.86 is: 8,511.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.58 : 29,573.56 = 5,675.86 : x
  2. Step 2: Convert to fraction form
    19,720.58/29,573.56 = 5,675.86/x
  3. Step 3: Cross multiply
    19,720.58x = 29,573.56 × 5,675.86
  4. Step 4: Simplify right side
    19,720.58x = 167,855,298.14
  5. Step 5: Solve for x
    x = 167,855,298.14/19,720.58
  6. Step 6: Final answer
    x = 8,511.68

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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.