Home / 22,755.20-31,389.79-14,255.50

Finding the Fourth Proportional to 22,755.20, 31,389.79 and 14,255.50

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Solution

The fourth proportional to 22,755.20, 31,389.79 and 14,255.50 is: 19,664.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,755.20 : 31,389.79 = 14,255.50 : x
  2. Step 2: Convert to fraction form
    22,755.20/31,389.79 = 14,255.50/x
  3. Step 3: Cross multiply
    22,755.20x = 31,389.79 × 14,255.50
  4. Step 4: Simplify right side
    22,755.20x = 447,477,151.35
  5. Step 5: Solve for x
    x = 447,477,151.35/22,755.20
  6. Step 6: Final answer
    x = 19,664.83

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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.