Home / 28,956.20-39,956.67-16,208.64

Finding the Fourth Proportional to 28,956.20, 39,956.67 and 16,208.64

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Solution

The fourth proportional to 28,956.20, 39,956.67 and 16,208.64 is: 22,366.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,956.20 : 39,956.67 = 16,208.64 : x
  2. Step 2: Convert to fraction form
    28,956.20/39,956.67 = 16,208.64/x
  3. Step 3: Cross multiply
    28,956.20x = 39,956.67 × 16,208.64
  4. Step 4: Simplify right side
    28,956.20x = 647,643,279.63
  5. Step 5: Solve for x
    x = 647,643,279.63/28,956.20
  6. Step 6: Final answer
    x = 22,366.31

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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.