Home / 20,514.76-28,314.42-12,017.80

Finding the Fourth Proportional to 20,514.76, 28,314.42 and 12,017.80

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Solution

The fourth proportional to 20,514.76, 28,314.42 and 12,017.80 is: 16,586.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.76 : 28,314.42 = 12,017.80 : x
  2. Step 2: Convert to fraction form
    20,514.76/28,314.42 = 12,017.80/x
  3. Step 3: Cross multiply
    20,514.76x = 28,314.42 × 12,017.80
  4. Step 4: Simplify right side
    20,514.76x = 340,277,036.68
  5. Step 5: Solve for x
    x = 340,277,036.68/20,514.76
  6. Step 6: Final answer
    x = 16,586.94

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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.