Home / 35,135.71-52,703.66-12,939.48

Finding the Fourth Proportional to 35,135.71, 52,703.66 and 12,939.48

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Solution

The fourth proportional to 35,135.71, 52,703.66 and 12,939.48 is: 19,409.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,135.71 : 52,703.66 = 12,939.48 : x
  2. Step 2: Convert to fraction form
    35,135.71/52,703.66 = 12,939.48/x
  3. Step 3: Cross multiply
    35,135.71x = 52,703.66 × 12,939.48
  4. Step 4: Simplify right side
    35,135.71x = 681,957,986.85
  5. Step 5: Solve for x
    x = 681,957,986.85/35,135.71
  6. Step 6: Final answer
    x = 19,409.26

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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.