Home / 21,079.67-29,091.60-12,005.41

Finding the Fourth Proportional to 21,079.67, 29,091.60 and 12,005.41

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Solution

The fourth proportional to 21,079.67, 29,091.60 and 12,005.41 is: 16,568.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,079.67 : 29,091.60 = 12,005.41 : x
  2. Step 2: Convert to fraction form
    21,079.67/29,091.60 = 12,005.41/x
  3. Step 3: Cross multiply
    21,079.67x = 29,091.60 × 12,005.41
  4. Step 4: Simplify right side
    21,079.67x = 349,256,621.92
  5. Step 5: Solve for x
    x = 349,256,621.92/21,079.67
  6. Step 6: Final answer
    x = 16,568.41

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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.