Home / 31,345.27-43,245.12-20,595.93

Finding the Fourth Proportional to 31,345.27, 43,245.12 and 20,595.93

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Solution

The fourth proportional to 31,345.27, 43,245.12 and 20,595.93 is: 28,414.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,345.27 : 43,245.12 = 20,595.93 : x
  2. Step 2: Convert to fraction form
    31,345.27/43,245.12 = 20,595.93/x
  3. Step 3: Cross multiply
    31,345.27x = 43,245.12 × 20,595.93
  4. Step 4: Simplify right side
    31,345.27x = 890,673,464.36
  5. Step 5: Solve for x
    x = 890,673,464.36/31,345.27
  6. Step 6: Final answer
    x = 28,414.92

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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.