Home / 18,299.72-27,472.26-18,215.48

Finding the Fourth Proportional to 18,299.72, 27,472.26 and 18,215.48

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Solution

The fourth proportional to 18,299.72, 27,472.26 and 18,215.48 is: 27,345.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.72 : 27,472.26 = 18,215.48 : x
  2. Step 2: Convert to fraction form
    18,299.72/27,472.26 = 18,215.48/x
  3. Step 3: Cross multiply
    18,299.72x = 27,472.26 × 18,215.48
  4. Step 4: Simplify right side
    18,299.72x = 500,420,402.58
  5. Step 5: Solve for x
    x = 500,420,402.58/18,299.72
  6. Step 6: Final answer
    x = 27,345.80

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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.