Home / 21,659.04-29,889.52-11,723.04

Finding the Fourth Proportional to 21,659.04, 29,889.52 and 11,723.04

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Solution

The fourth proportional to 21,659.04, 29,889.52 and 11,723.04 is: 16,177.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,659.04 : 29,889.52 = 11,723.04 : x
  2. Step 2: Convert to fraction form
    21,659.04/29,889.52 = 11,723.04/x
  3. Step 3: Cross multiply
    21,659.04x = 29,889.52 × 11,723.04
  4. Step 4: Simplify right side
    21,659.04x = 350,396,038.54
  5. Step 5: Solve for x
    x = 350,396,038.54/21,659.04
  6. Step 6: Final answer
    x = 16,177.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.