Home / 19,904.12-29,790.54-11,005.76

Finding the Fourth Proportional to 19,904.12, 29,790.54 and 11,005.76

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Solution

The fourth proportional to 19,904.12, 29,790.54 and 11,005.76 is: 16,472.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,904.12 : 29,790.54 = 11,005.76 : x
  2. Step 2: Convert to fraction form
    19,904.12/29,790.54 = 11,005.76/x
  3. Step 3: Cross multiply
    19,904.12x = 29,790.54 × 11,005.76
  4. Step 4: Simplify right side
    19,904.12x = 327,867,384.56
  5. Step 5: Solve for x
    x = 327,867,384.56/19,904.12
  6. Step 6: Final answer
    x = 16,472.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.