Home / 28,816.16-43,198.65-13,815.09

Finding the Fourth Proportional to 28,816.16, 43,198.65 and 13,815.09

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Solution

The fourth proportional to 28,816.16, 43,198.65 and 13,815.09 is: 20,710.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,816.16 : 43,198.65 = 13,815.09 : x
  2. Step 2: Convert to fraction form
    28,816.16/43,198.65 = 13,815.09/x
  3. Step 3: Cross multiply
    28,816.16x = 43,198.65 × 13,815.09
  4. Step 4: Simplify right side
    28,816.16x = 596,793,237.63
  5. Step 5: Solve for x
    x = 596,793,237.63/28,816.16
  6. Step 6: Final answer
    x = 20,710.37

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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.