Home / 20,623.72-30,940.89-9,538.36

Finding the Fourth Proportional to 20,623.72, 30,940.89 and 9,538.36

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Solution

The fourth proportional to 20,623.72, 30,940.89 and 9,538.36 is: 14,310.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,623.72 : 30,940.89 = 9,538.36 : x
  2. Step 2: Convert to fraction form
    20,623.72/30,940.89 = 9,538.36/x
  3. Step 3: Cross multiply
    20,623.72x = 30,940.89 × 9,538.36
  4. Step 4: Simplify right side
    20,623.72x = 295,125,347.54
  5. Step 5: Solve for x
    x = 295,125,347.54/20,623.72
  6. Step 6: Final answer
    x = 14,310.00

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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.