Home / 19,977.76-27,568.40-11,473.90

Finding the Fourth Proportional to 19,977.76, 27,568.40 and 11,473.90

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Solution

The fourth proportional to 19,977.76, 27,568.40 and 11,473.90 is: 15,833.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,977.76 : 27,568.40 = 11,473.90 : x
  2. Step 2: Convert to fraction form
    19,977.76/27,568.40 = 11,473.90/x
  3. Step 3: Cross multiply
    19,977.76x = 27,568.40 × 11,473.90
  4. Step 4: Simplify right side
    19,977.76x = 316,317,064.76
  5. Step 5: Solve for x
    x = 316,317,064.76/19,977.76
  6. Step 6: Final answer
    x = 15,833.46

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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.