Home / 21,735.24-29,994.66-12,306.84

Finding the Fourth Proportional to 21,735.24, 29,994.66 and 12,306.84

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Solution

The fourth proportional to 21,735.24, 29,994.66 and 12,306.84 is: 16,983.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,735.24 : 29,994.66 = 12,306.84 : x
  2. Step 2: Convert to fraction form
    21,735.24/29,994.66 = 12,306.84/x
  3. Step 3: Cross multiply
    21,735.24x = 29,994.66 × 12,306.84
  4. Step 4: Simplify right side
    21,735.24x = 369,139,481.47
  5. Step 5: Solve for x
    x = 369,139,481.47/21,735.24
  6. Step 6: Final answer
    x = 16,983.46

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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.