Home / 30,269.26-45,403.68-7,779.85

Finding the Fourth Proportional to 30,269.26, 45,403.68 and 7,779.85

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Solution

The fourth proportional to 30,269.26, 45,403.68 and 7,779.85 is: 11,669.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,269.26 : 45,403.68 = 7,779.85 : x
  2. Step 2: Convert to fraction form
    30,269.26/45,403.68 = 7,779.85/x
  3. Step 3: Cross multiply
    30,269.26x = 45,403.68 × 7,779.85
  4. Step 4: Simplify right side
    30,269.26x = 353,233,819.85
  5. Step 5: Solve for x
    x = 353,233,819.85/30,269.26
  6. Step 6: Final answer
    x = 11,669.72

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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.