Home / 21,514.60-29,684.95-12,556.99

Finding the Fourth Proportional to 21,514.60, 29,684.95 and 12,556.99

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Solution

The fourth proportional to 21,514.60, 29,684.95 and 12,556.99 is: 17,325.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,514.60 : 29,684.95 = 12,556.99 : x
  2. Step 2: Convert to fraction form
    21,514.60/29,684.95 = 12,556.99/x
  3. Step 3: Cross multiply
    21,514.60x = 29,684.95 × 12,556.99
  4. Step 4: Simplify right side
    21,514.60x = 372,753,620.30
  5. Step 5: Solve for x
    x = 372,753,620.30/21,514.60
  6. Step 6: Final answer
    x = 17,325.61

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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.