Home / 20,514.99-28,312.68-12,016.56

Finding the Fourth Proportional to 20,514.99, 28,312.68 and 12,016.56

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Solution

The fourth proportional to 20,514.99, 28,312.68 and 12,016.56 is: 16,584.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.99 : 28,312.68 = 12,016.56 : x
  2. Step 2: Convert to fraction form
    20,514.99/28,312.68 = 12,016.56/x
  3. Step 3: Cross multiply
    20,514.99x = 28,312.68 × 12,016.56
  4. Step 4: Simplify right side
    20,514.99x = 340,221,017.98
  5. Step 5: Solve for x
    x = 340,221,017.98/20,514.99
  6. Step 6: Final answer
    x = 16,584.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.