Home / 21,042.05-29,039.81-12,092.63

Finding the Fourth Proportional to 21,042.05, 29,039.81 and 12,092.63

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Solution

The fourth proportional to 21,042.05, 29,039.81 and 12,092.63 is: 16,688.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042.05 : 29,039.81 = 12,092.63 : x
  2. Step 2: Convert to fraction form
    21,042.05/29,039.81 = 12,092.63/x
  3. Step 3: Cross multiply
    21,042.05x = 29,039.81 × 12,092.63
  4. Step 4: Simplify right side
    21,042.05x = 351,167,471.94
  5. Step 5: Solve for x
    x = 351,167,471.94/21,042.05
  6. Step 6: Final answer
    x = 16,688.85

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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.