Home / 19,940.70-29,901.24-11,622.81

Finding the Fourth Proportional to 19,940.70, 29,901.24 and 11,622.81

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Solution

The fourth proportional to 19,940.70, 29,901.24 and 11,622.81 is: 17,428.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.70 : 29,901.24 = 11,622.81 : x
  2. Step 2: Convert to fraction form
    19,940.70/29,901.24 = 11,622.81/x
  3. Step 3: Cross multiply
    19,940.70x = 29,901.24 × 11,622.81
  4. Step 4: Simplify right side
    19,940.70x = 347,536,431.28
  5. Step 5: Solve for x
    x = 347,536,431.28/19,940.70
  6. Step 6: Final answer
    x = 17,428.50

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1.5x scale

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.