Home / 29,999.43-45,007.49-13,129.44

Finding the Fourth Proportional to 29,999.43, 45,007.49 and 13,129.44

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Solution

The fourth proportional to 29,999.43, 45,007.49 and 13,129.44 is: 19,697.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,999.43 : 45,007.49 = 13,129.44 : x
  2. Step 2: Convert to fraction form
    29,999.43/45,007.49 = 13,129.44/x
  3. Step 3: Cross multiply
    29,999.43x = 45,007.49 × 13,129.44
  4. Step 4: Simplify right side
    29,999.43x = 590,923,073.86
  5. Step 5: Solve for x
    x = 590,923,073.86/29,999.43
  6. Step 6: Final answer
    x = 19,697.81

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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.