Home / 35,502.78-53,254.17-12,129.42

Finding the Fourth Proportional to 35,502.78, 53,254.17 and 12,129.42

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Solution

The fourth proportional to 35,502.78, 53,254.17 and 12,129.42 is: 18,194.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,502.78 : 53,254.17 = 12,129.42 : x
  2. Step 2: Convert to fraction form
    35,502.78/53,254.17 = 12,129.42/x
  3. Step 3: Cross multiply
    35,502.78x = 53,254.17 × 12,129.42
  4. Step 4: Simplify right side
    35,502.78x = 645,942,194.68
  5. Step 5: Solve for x
    x = 645,942,194.68/35,502.78
  6. Step 6: Final answer
    x = 18,194.13

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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.