Home / 19,813.18-27,342.03-11,429.50

Finding the Fourth Proportional to 19,813.18, 27,342.03 and 11,429.50

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Solution

The fourth proportional to 19,813.18, 27,342.03 and 11,429.50 is: 15,772.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.18 : 27,342.03 = 11,429.50 : x
  2. Step 2: Convert to fraction form
    19,813.18/27,342.03 = 11,429.50/x
  3. Step 3: Cross multiply
    19,813.18x = 27,342.03 × 11,429.50
  4. Step 4: Simplify right side
    19,813.18x = 312,505,731.89
  5. Step 5: Solve for x
    x = 312,505,731.89/19,813.18
  6. Step 6: Final answer
    x = 15,772.62

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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.