Home / 27,288.80-40,909.20-18,495.20

Finding the Fourth Proportional to 27,288.80, 40,909.20 and 18,495.20

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Solution

The fourth proportional to 27,288.80, 40,909.20 and 18,495.20 is: 27,726.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,288.80 : 40,909.20 = 18,495.20 : x
  2. Step 2: Convert to fraction form
    27,288.80/40,909.20 = 18,495.20/x
  3. Step 3: Cross multiply
    27,288.80x = 40,909.20 × 18,495.20
  4. Step 4: Simplify right side
    27,288.80x = 756,623,835.84
  5. Step 5: Solve for x
    x = 756,623,835.84/27,288.80
  6. Step 6: Final answer
    x = 27,726.53

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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.