Home / 21,686.73-32,507.93-12,306.94

Finding the Fourth Proportional to 21,686.73, 32,507.93 and 12,306.94

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Solution

The fourth proportional to 21,686.73, 32,507.93 and 12,306.94 is: 18,447.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,686.73 : 32,507.93 = 12,306.94 : x
  2. Step 2: Convert to fraction form
    21,686.73/32,507.93 = 12,306.94/x
  3. Step 3: Cross multiply
    21,686.73x = 32,507.93 × 12,306.94
  4. Step 4: Simplify right side
    21,686.73x = 400,073,093.53
  5. Step 5: Solve for x
    x = 400,073,093.53/21,686.73
  6. Step 6: Final answer
    x = 18,447.83

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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.