Home / 20,607.23-28,439.39-11,654.73

Finding the Fourth Proportional to 20,607.23, 28,439.39 and 11,654.73

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Solution

The fourth proportional to 20,607.23, 28,439.39 and 11,654.73 is: 16,084.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,607.23 : 28,439.39 = 11,654.73 : x
  2. Step 2: Convert to fraction form
    20,607.23/28,439.39 = 11,654.73/x
  3. Step 3: Cross multiply
    20,607.23x = 28,439.39 × 11,654.73
  4. Step 4: Simplify right side
    20,607.23x = 331,453,411.81
  5. Step 5: Solve for x
    x = 331,453,411.81/20,607.23
  6. Step 6: Final answer
    x = 16,084.33

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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.