Home / 20,466.85-28,243.95-11,514.36

Finding the Fourth Proportional to 20,466.85, 28,243.95 and 11,514.36

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Solution

The fourth proportional to 20,466.85, 28,243.95 and 11,514.36 is: 15,889.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466.85 : 28,243.95 = 11,514.36 : x
  2. Step 2: Convert to fraction form
    20,466.85/28,243.95 = 11,514.36/x
  3. Step 3: Cross multiply
    20,466.85x = 28,243.95 × 11,514.36
  4. Step 4: Simplify right side
    20,466.85x = 325,211,008.12
  5. Step 5: Solve for x
    x = 325,211,008.12/20,466.85
  6. Step 6: Final answer
    x = 15,889.65

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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.