Home / 31,621.64-43,658.22-20,296.04

Finding the Fourth Proportional to 31,621.64, 43,658.22 and 20,296.04

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Solution

The fourth proportional to 31,621.64, 43,658.22 and 20,296.04 is: 28,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,621.64 : 43,658.22 = 20,296.04 : x
  2. Step 2: Convert to fraction form
    31,621.64/43,658.22 = 20,296.04/x
  3. Step 3: Cross multiply
    31,621.64x = 43,658.22 × 20,296.04
  4. Step 4: Simplify right side
    31,621.64x = 886,088,979.45
  5. Step 5: Solve for x
    x = 886,088,979.45/31,621.64
  6. Step 6: Final answer
    x = 28,021.60

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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.