Home / 19,511.86-29,267.82-4,720.72

Finding the Fourth Proportional to 19,511.86, 29,267.82 and 4,720.72

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Solution

The fourth proportional to 19,511.86, 29,267.82 and 4,720.72 is: 7,081.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,511.86 : 29,267.82 = 4,720.72 : x
  2. Step 2: Convert to fraction form
    19,511.86/29,267.82 = 4,720.72/x
  3. Step 3: Cross multiply
    19,511.86x = 29,267.82 × 4,720.72
  4. Step 4: Simplify right side
    19,511.86x = 138,165,183.23
  5. Step 5: Solve for x
    x = 138,165,183.23/19,511.86
  6. Step 6: Final answer
    x = 7,081.09

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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.