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Finding the Fourth Proportional to 16,028.40, 23,999.40 and 12,572.40

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Solution

The fourth proportional to 16,028.40, 23,999.40 and 12,572.40 is: 18,824.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,028.40 : 23,999.40 = 12,572.40 : x
  2. Step 2: Convert to fraction form
    16,028.40/23,999.40 = 12,572.40/x
  3. Step 3: Cross multiply
    16,028.40x = 23,999.40 × 12,572.40
  4. Step 4: Simplify right side
    16,028.40x = 301,730,056.56
  5. Step 5: Solve for x
    x = 301,730,056.56/16,028.40
  6. Step 6: Final answer
    x = 18,824.71

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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.