Home / 21,960.52-32,940.80-7,169.40

Finding the Fourth Proportional to 21,960.52, 32,940.80 and 7,169.40

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Solution

The fourth proportional to 21,960.52, 32,940.80 and 7,169.40 is: 10,754.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960.52 : 32,940.80 = 7,169.40 : x
  2. Step 2: Convert to fraction form
    21,960.52/32,940.80 = 7,169.40/x
  3. Step 3: Cross multiply
    21,960.52x = 32,940.80 × 7,169.40
  4. Step 4: Simplify right side
    21,960.52x = 236,165,771.52
  5. Step 5: Solve for x
    x = 236,165,771.52/21,960.52
  6. Step 6: Final answer
    x = 10,754.11

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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.