Home / 19,711.70-27,192.72-13,340.52

Finding the Fourth Proportional to 19,711.70, 27,192.72 and 13,340.52

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Solution

The fourth proportional to 19,711.70, 27,192.72 and 13,340.52 is: 18,403.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,711.70 : 27,192.72 = 13,340.52 : x
  2. Step 2: Convert to fraction form
    19,711.70/27,192.72 = 13,340.52/x
  3. Step 3: Cross multiply
    19,711.70x = 27,192.72 × 13,340.52
  4. Step 4: Simplify right side
    19,711.70x = 362,765,025.01
  5. Step 5: Solve for x
    x = 362,765,025.01/19,711.70
  6. Step 6: Final answer
    x = 18,403.54

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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.