Home / 21,826.12-32,739.38-11,960.01

Finding the Fourth Proportional to 21,826.12, 32,739.38 and 11,960.01

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Solution

The fourth proportional to 21,826.12, 32,739.38 and 11,960.01 is: 17,940.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,826.12 : 32,739.38 = 11,960.01 : x
  2. Step 2: Convert to fraction form
    21,826.12/32,739.38 = 11,960.01/x
  3. Step 3: Cross multiply
    21,826.12x = 32,739.38 × 11,960.01
  4. Step 4: Simplify right side
    21,826.12x = 391,563,342.09
  5. Step 5: Solve for x
    x = 391,563,342.09/21,826.12
  6. Step 6: Final answer
    x = 17,940.13

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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.