Home / 21,659.46-29,890.13-11,723.46

Finding the Fourth Proportional to 21,659.46, 29,890.13 and 11,723.46

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Solution

The fourth proportional to 21,659.46, 29,890.13 and 11,723.46 is: 16,178.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,659.46 : 29,890.13 = 11,723.46 : x
  2. Step 2: Convert to fraction form
    21,659.46/29,890.13 = 11,723.46/x
  3. Step 3: Cross multiply
    21,659.46x = 29,890.13 × 11,723.46
  4. Step 4: Simplify right side
    21,659.46x = 350,415,684.83
  5. Step 5: Solve for x
    x = 350,415,684.83/21,659.46
  6. Step 6: Final answer
    x = 16,178.41

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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.