Home / 21,650.98-29,867.34-13,150.84

Finding the Fourth Proportional to 21,650.98, 29,867.34 and 13,150.84

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Solution

The fourth proportional to 21,650.98, 29,867.34 and 13,150.84 is: 18,141.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,650.98 : 29,867.34 = 13,150.84 : x
  2. Step 2: Convert to fraction form
    21,650.98/29,867.34 = 13,150.84/x
  3. Step 3: Cross multiply
    21,650.98x = 29,867.34 × 13,150.84
  4. Step 4: Simplify right side
    21,650.98x = 392,780,609.57
  5. Step 5: Solve for x
    x = 392,780,609.57/21,650.98
  6. Step 6: Final answer
    x = 18,141.47

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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.