Home / 21,496.55-29,679.68-16,451.75

Finding the Fourth Proportional to 21,496.55, 29,679.68 and 16,451.75

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Solution

The fourth proportional to 21,496.55, 29,679.68 and 16,451.75 is: 22,714.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,496.55 : 29,679.68 = 16,451.75 : x
  2. Step 2: Convert to fraction form
    21,496.55/29,679.68 = 16,451.75/x
  3. Step 3: Cross multiply
    21,496.55x = 29,679.68 × 16,451.75
  4. Step 4: Simplify right side
    21,496.55x = 488,282,790.77
  5. Step 5: Solve for x
    x = 488,282,790.77/21,496.55
  6. Step 6: Final answer
    x = 22,714.48

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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.