Home / 22,709.97-31,343.09-13,635.95

Finding the Fourth Proportional to 22,709.97, 31,343.09 and 13,635.95

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Solution

The fourth proportional to 22,709.97, 31,343.09 and 13,635.95 is: 18,819.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,709.97 : 31,343.09 = 13,635.95 : x
  2. Step 2: Convert to fraction form
    22,709.97/31,343.09 = 13,635.95/x
  3. Step 3: Cross multiply
    22,709.97x = 31,343.09 × 13,635.95
  4. Step 4: Simplify right side
    22,709.97x = 427,392,583.19
  5. Step 5: Solve for x
    x = 427,392,583.19/22,709.97
  6. Step 6: Final answer
    x = 18,819.60

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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.