Home / 18,429.14-25,255.12-16,657.76

Finding the Fourth Proportional to 18,429.14, 25,255.12 and 16,657.76

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Solution

The fourth proportional to 18,429.14, 25,255.12 and 16,657.76 is: 22,827.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.14 : 25,255.12 = 16,657.76 : x
  2. Step 2: Convert to fraction form
    18,429.14/25,255.12 = 16,657.76/x
  3. Step 3: Cross multiply
    18,429.14x = 25,255.12 × 16,657.76
  4. Step 4: Simplify right side
    18,429.14x = 420,693,727.73
  5. Step 5: Solve for x
    x = 420,693,727.73/18,429.14
  6. Step 6: Final answer
    x = 22,827.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.