Home / 20,904.30-28,848.96-11,952.54

Finding the Fourth Proportional to 20,904.30, 28,848.96 and 11,952.54

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Solution

The fourth proportional to 20,904.30, 28,848.96 and 11,952.54 is: 16,495.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904.30 : 28,848.96 = 11,952.54 : x
  2. Step 2: Convert to fraction form
    20,904.30/28,848.96 = 11,952.54/x
  3. Step 3: Cross multiply
    20,904.30x = 28,848.96 × 11,952.54
  4. Step 4: Simplify right side
    20,904.30x = 344,818,348.36
  5. Step 5: Solve for x
    x = 344,818,348.36/20,904.30
  6. Step 6: Final answer
    x = 16,495.09

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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.