Home / 21,007.23-28,991.97-12,056.73

Finding the Fourth Proportional to 21,007.23, 28,991.97 and 12,056.73

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Solution

The fourth proportional to 21,007.23, 28,991.97 and 12,056.73 is: 16,639.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,007.23 : 28,991.97 = 12,056.73 : x
  2. Step 2: Convert to fraction form
    21,007.23/28,991.97 = 12,056.73/x
  3. Step 3: Cross multiply
    21,007.23x = 28,991.97 × 12,056.73
  4. Step 4: Simplify right side
    21,007.23x = 349,548,354.46
  5. Step 5: Solve for x
    x = 349,548,354.46/21,007.23
  6. Step 6: Final answer
    x = 16,639.43

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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.