Home / 16,821.86-25,255.10-14,372.42

Finding the Fourth Proportional to 16,821.86, 25,255.10 and 14,372.42

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Solution

The fourth proportional to 16,821.86, 25,255.10 and 14,372.42 is: 21,577.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821.86 : 25,255.10 = 14,372.42 : x
  2. Step 2: Convert to fraction form
    16,821.86/25,255.10 = 14,372.42/x
  3. Step 3: Cross multiply
    16,821.86x = 25,255.10 × 14,372.42
  4. Step 4: Simplify right side
    16,821.86x = 362,976,814.00
  5. Step 5: Solve for x
    x = 362,976,814.00/16,821.86
  6. Step 6: Final answer
    x = 21,577.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.