Home / 28,818.62-43,206.92-19,435.32

Finding the Fourth Proportional to 28,818.62, 43,206.92 and 19,435.32

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Solution

The fourth proportional to 28,818.62, 43,206.92 and 19,435.32 is: 29,138.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,818.62 : 43,206.92 = 19,435.32 : x
  2. Step 2: Convert to fraction form
    28,818.62/43,206.92 = 19,435.32/x
  3. Step 3: Cross multiply
    28,818.62x = 43,206.92 × 19,435.32
  4. Step 4: Simplify right side
    28,818.62x = 839,740,316.41
  5. Step 5: Solve for x
    x = 839,740,316.41/28,818.62
  6. Step 6: Final answer
    x = 29,138.81

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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.