Home / 20,178.24-27,842.97-11,225.85

Finding the Fourth Proportional to 20,178.24, 27,842.97 and 11,225.85

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Solution

The fourth proportional to 20,178.24, 27,842.97 and 11,225.85 is: 15,490.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178.24 : 27,842.97 = 11,225.85 : x
  2. Step 2: Convert to fraction form
    20,178.24/27,842.97 = 11,225.85/x
  3. Step 3: Cross multiply
    20,178.24x = 27,842.97 × 11,225.85
  4. Step 4: Simplify right side
    20,178.24x = 312,561,004.77
  5. Step 5: Solve for x
    x = 312,561,004.77/20,178.24
  6. Step 6: Final answer
    x = 15,490.00

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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.