Home / 21,146.93-29,176.13-12,193.22

Finding the Fourth Proportional to 21,146.93, 29,176.13 and 12,193.22

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Solution

The fourth proportional to 21,146.93, 29,176.13 and 12,193.22 is: 16,822.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,146.93 : 29,176.13 = 12,193.22 : x
  2. Step 2: Convert to fraction form
    21,146.93/29,176.13 = 12,193.22/x
  3. Step 3: Cross multiply
    21,146.93x = 29,176.13 × 12,193.22
  4. Step 4: Simplify right side
    21,146.93x = 355,750,764.99
  5. Step 5: Solve for x
    x = 355,750,764.99/21,146.93
  6. Step 6: Final answer
    x = 16,822.81

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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.