Home / 20,907.52-28,854.42-11,956.34

Finding the Fourth Proportional to 20,907.52, 28,854.42 and 11,956.34

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Solution

The fourth proportional to 20,907.52, 28,854.42 and 11,956.34 is: 16,500.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,907.52 : 28,854.42 = 11,956.34 : x
  2. Step 2: Convert to fraction form
    20,907.52/28,854.42 = 11,956.34/x
  3. Step 3: Cross multiply
    20,907.52x = 28,854.42 × 11,956.34
  4. Step 4: Simplify right side
    20,907.52x = 344,993,256.02
  5. Step 5: Solve for x
    x = 344,993,256.02/20,907.52
  6. Step 6: Final answer
    x = 16,500.92

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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.