Home / 20,600.88-28,428.98-11,648.48

Finding the Fourth Proportional to 20,600.88, 28,428.98 and 11,648.48

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Solution

The fourth proportional to 20,600.88, 28,428.98 and 11,648.48 is: 16,074.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600.88 : 28,428.98 = 11,648.48 : x
  2. Step 2: Convert to fraction form
    20,600.88/28,428.98 = 11,648.48/x
  3. Step 3: Cross multiply
    20,600.88x = 28,428.98 × 11,648.48
  4. Step 4: Simplify right side
    20,600.88x = 331,154,404.95
  5. Step 5: Solve for x
    x = 331,154,404.95/20,600.88
  6. Step 6: Final answer
    x = 16,074.77

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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.