Home / 20,946.09-28,904.87-11,514.59

Finding the Fourth Proportional to 20,946.09, 28,904.87 and 11,514.59

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Solution

The fourth proportional to 20,946.09, 28,904.87 and 11,514.59 is: 15,889.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946.09 : 28,904.87 = 11,514.59 : x
  2. Step 2: Convert to fraction form
    20,946.09/28,904.87 = 11,514.59/x
  3. Step 3: Cross multiply
    20,946.09x = 28,904.87 × 11,514.59
  4. Step 4: Simplify right side
    20,946.09x = 332,827,524.96
  5. Step 5: Solve for x
    x = 332,827,524.96/20,946.09
  6. Step 6: Final answer
    x = 15,889.72

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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.