Home / 28,264.29-38,996.73-18,198.56

Finding the Fourth Proportional to 28,264.29, 38,996.73 and 18,198.56

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Solution

The fourth proportional to 28,264.29, 38,996.73 and 18,198.56 is: 25,108.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,264.29 : 38,996.73 = 18,198.56 : x
  2. Step 2: Convert to fraction form
    28,264.29/38,996.73 = 18,198.56/x
  3. Step 3: Cross multiply
    28,264.29x = 38,996.73 × 18,198.56
  4. Step 4: Simplify right side
    28,264.29x = 709,684,135.73
  5. Step 5: Solve for x
    x = 709,684,135.73/28,264.29
  6. Step 6: Final answer
    x = 25,108.86

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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.