Home / 21,538.73-29,723.46-12,107.36

Finding the Fourth Proportional to 21,538.73, 29,723.46 and 12,107.36

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Solution

The fourth proportional to 21,538.73, 29,723.46 and 12,107.36 is: 16,708.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,538.73 : 29,723.46 = 12,107.36 : x
  2. Step 2: Convert to fraction form
    21,538.73/29,723.46 = 12,107.36/x
  3. Step 3: Cross multiply
    21,538.73x = 29,723.46 × 12,107.36
  4. Step 4: Simplify right side
    21,538.73x = 359,872,630.67
  5. Step 5: Solve for x
    x = 359,872,630.67/21,538.73
  6. Step 6: Final answer
    x = 16,708.16

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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.