Home / 21,960.12-32,945.40-7,169.08

Finding the Fourth Proportional to 21,960.12, 32,945.40 and 7,169.08

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Solution

The fourth proportional to 21,960.12, 32,945.40 and 7,169.08 is: 10,755.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960.12 : 32,945.40 = 7,169.08 : x
  2. Step 2: Convert to fraction form
    21,960.12/32,945.40 = 7,169.08/x
  3. Step 3: Cross multiply
    21,960.12x = 32,945.40 × 7,169.08
  4. Step 4: Simplify right side
    21,960.12x = 236,188,208.23
  5. Step 5: Solve for x
    x = 236,188,208.23/21,960.12
  6. Step 6: Final answer
    x = 10,755.32

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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.