Home / 20,995.88-28,973.24-11,562.62

Finding the Fourth Proportional to 20,995.88, 28,973.24 and 11,562.62

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Solution

The fourth proportional to 20,995.88, 28,973.24 and 11,562.62 is: 15,955.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,995.88 : 28,973.24 = 11,562.62 : x
  2. Step 2: Convert to fraction form
    20,995.88/28,973.24 = 11,562.62/x
  3. Step 3: Cross multiply
    20,995.88x = 28,973.24 × 11,562.62
  4. Step 4: Simplify right side
    20,995.88x = 335,006,564.29
  5. Step 5: Solve for x
    x = 335,006,564.29/20,995.88
  6. Step 6: Final answer
    x = 15,955.82

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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.