Home / 17,900.78-24,712.35-16,722.86

Finding the Fourth Proportional to 17,900.78, 24,712.35 and 16,722.86

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Solution

The fourth proportional to 17,900.78, 24,712.35 and 16,722.86 is: 23,086.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,900.78 : 24,712.35 = 16,722.86 : x
  2. Step 2: Convert to fraction form
    17,900.78/24,712.35 = 16,722.86/x
  3. Step 3: Cross multiply
    17,900.78x = 24,712.35 × 16,722.86
  4. Step 4: Simplify right side
    17,900.78x = 413,261,169.32
  5. Step 5: Solve for x
    x = 413,261,169.32/17,900.78
  6. Step 6: Final answer
    x = 23,086.21

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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.