Home / 29,083.78-43,628.05-12,443.98

Finding the Fourth Proportional to 29,083.78, 43,628.05 and 12,443.98

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Solution

The fourth proportional to 29,083.78, 43,628.05 and 12,443.98 is: 18,666.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,083.78 : 43,628.05 = 12,443.98 : x
  2. Step 2: Convert to fraction form
    29,083.78/43,628.05 = 12,443.98/x
  3. Step 3: Cross multiply
    29,083.78x = 43,628.05 × 12,443.98
  4. Step 4: Simplify right side
    29,083.78x = 542,906,569.93
  5. Step 5: Solve for x
    x = 542,906,569.93/29,083.78
  6. Step 6: Final answer
    x = 18,666.99

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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.