Home / 16,999.92-23,369.16-15,188.40

Finding the Fourth Proportional to 16,999.92, 23,369.16 and 15,188.40

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Solution

The fourth proportional to 16,999.92, 23,369.16 and 15,188.40 is: 20,878.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,999.92 : 23,369.16 = 15,188.40 : x
  2. Step 2: Convert to fraction form
    16,999.92/23,369.16 = 15,188.40/x
  3. Step 3: Cross multiply
    16,999.92x = 23,369.16 × 15,188.40
  4. Step 4: Simplify right side
    16,999.92x = 354,940,149.74
  5. Step 5: Solve for x
    x = 354,940,149.74/16,999.92
  6. Step 6: Final answer
    x = 20,878.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.