Home / 31,939.99-44,029.92-20,453.68

Finding the Fourth Proportional to 31,939.99, 44,029.92 and 20,453.68

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Solution

The fourth proportional to 31,939.99, 44,029.92 and 20,453.68 is: 28,195.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,939.99 : 44,029.92 = 20,453.68 : x
  2. Step 2: Convert to fraction form
    31,939.99/44,029.92 = 20,453.68/x
  3. Step 3: Cross multiply
    31,939.99x = 44,029.92 × 20,453.68
  4. Step 4: Simplify right side
    31,939.99x = 900,573,894.11
  5. Step 5: Solve for x
    x = 900,573,894.11/31,939.99
  6. Step 6: Final answer
    x = 28,195.81

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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.