Home / 26,640.32-39,968.48-12,611.04

Finding the Fourth Proportional to 26,640.32, 39,968.48 and 12,611.04

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Solution

The fourth proportional to 26,640.32, 39,968.48 and 12,611.04 is: 18,920.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,640.32 : 39,968.48 = 12,611.04 : x
  2. Step 2: Convert to fraction form
    26,640.32/39,968.48 = 12,611.04/x
  3. Step 3: Cross multiply
    26,640.32x = 39,968.48 × 12,611.04
  4. Step 4: Simplify right side
    26,640.32x = 504,044,100.02
  5. Step 5: Solve for x
    x = 504,044,100.02/26,640.32
  6. Step 6: Final answer
    x = 18,920.35

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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.