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Finding the Fourth Proportional to 27,150.80, 40,726.20 and 16,782.80

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Solution

The fourth proportional to 27,150.80, 40,726.20 and 16,782.80 is: 25,174.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,150.80 : 40,726.20 = 16,782.80 : x
  2. Step 2: Convert to fraction form
    27,150.80/40,726.20 = 16,782.80/x
  3. Step 3: Cross multiply
    27,150.80x = 40,726.20 × 16,782.80
  4. Step 4: Simplify right side
    27,150.80x = 683,499,669.36
  5. Step 5: Solve for x
    x = 683,499,669.36/27,150.80
  6. Step 6: Final answer
    x = 25,174.20

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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.