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Finding the Fourth Proportional to 18,542.30, 27,765.23 and 15,573.92

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Solution

The fourth proportional to 18,542.30, 27,765.23 and 15,573.92 is: 23,320.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,542.30 : 27,765.23 = 15,573.92 : x
  2. Step 2: Convert to fraction form
    18,542.30/27,765.23 = 15,573.92/x
  3. Step 3: Cross multiply
    18,542.30x = 27,765.23 × 15,573.92
  4. Step 4: Simplify right side
    18,542.30x = 432,413,254.11
  5. Step 5: Solve for x
    x = 432,413,254.11/18,542.30
  6. Step 6: Final answer
    x = 23,320.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.