Home / 19,905.54-27,455.52-16,900.64

Finding the Fourth Proportional to 19,905.54, 27,455.52 and 16,900.64

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Solution

The fourth proportional to 19,905.54, 27,455.52 and 16,900.64 is: 23,310.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.54 : 27,455.52 = 16,900.64 : x
  2. Step 2: Convert to fraction form
    19,905.54/27,455.52 = 16,900.64/x
  3. Step 3: Cross multiply
    19,905.54x = 27,455.52 × 16,900.64
  4. Step 4: Simplify right side
    19,905.54x = 464,015,859.53
  5. Step 5: Solve for x
    x = 464,015,859.53/19,905.54
  6. Step 6: Final answer
    x = 23,310.89

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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.