Home / 19,778.20-27,292.98-10,825

Finding the Fourth Proportional to 19,778.20, 27,292.98 and 10,825

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Solution

The fourth proportional to 19,778.20, 27,292.98 and 10,825 is: 14,937.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,778.20 : 27,292.98 = 10,825 : x
  2. Step 2: Convert to fraction form
    19,778.20/27,292.98 = 10,825/x
  3. Step 3: Cross multiply
    19,778.20x = 27,292.98 × 10,825
  4. Step 4: Simplify right side
    19,778.20x = 295,446,508.50
  5. Step 5: Solve for x
    x = 295,446,508.50/19,778.20
  6. Step 6: Final answer
    x = 14,937.99

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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.