Home / 21,556.07-29,748.35-12,124.63

Finding the Fourth Proportional to 21,556.07, 29,748.35 and 12,124.63

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Solution

The fourth proportional to 21,556.07, 29,748.35 and 12,124.63 is: 16,732.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,556.07 : 29,748.35 = 12,124.63 : x
  2. Step 2: Convert to fraction form
    21,556.07/29,748.35 = 12,124.63/x
  3. Step 3: Cross multiply
    21,556.07x = 29,748.35 × 12,124.63
  4. Step 4: Simplify right side
    21,556.07x = 360,687,736.16
  5. Step 5: Solve for x
    x = 360,687,736.16/21,556.07
  6. Step 6: Final answer
    x = 16,732.54

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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.