Home / 20,514.78-30,779.33-6,476.98

Finding the Fourth Proportional to 20,514.78, 30,779.33 and 6,476.98

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Solution

The fourth proportional to 20,514.78, 30,779.33 and 6,476.98 is: 9,717.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.78 : 30,779.33 = 6,476.98 : x
  2. Step 2: Convert to fraction form
    20,514.78/30,779.33 = 6,476.98/x
  3. Step 3: Cross multiply
    20,514.78x = 30,779.33 × 6,476.98
  4. Step 4: Simplify right side
    20,514.78x = 199,357,104.82
  5. Step 5: Solve for x
    x = 199,357,104.82/20,514.78
  6. Step 6: Final answer
    x = 9,717.73

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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.