Home / 27,311.73-37,689.05-15,374.63

Finding the Fourth Proportional to 27,311.73, 37,689.05 and 15,374.63

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Solution

The fourth proportional to 27,311.73, 37,689.05 and 15,374.63 is: 21,216.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,311.73 : 37,689.05 = 15,374.63 : x
  2. Step 2: Convert to fraction form
    27,311.73/37,689.05 = 15,374.63/x
  3. Step 3: Cross multiply
    27,311.73x = 37,689.05 × 15,374.63
  4. Step 4: Simplify right side
    27,311.73x = 579,454,933.48
  5. Step 5: Solve for x
    x = 579,454,933.48/27,311.73
  6. Step 6: Final answer
    x = 21,216.34

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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.