Home / 31,356.08-43,217.52-29,879.72

Finding the Fourth Proportional to 31,356.08, 43,217.52 and 29,879.72

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Solution

The fourth proportional to 31,356.08, 43,217.52 and 29,879.72 is: 41,182.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,356.08 : 43,217.52 = 29,879.72 : x
  2. Step 2: Convert to fraction form
    31,356.08/43,217.52 = 29,879.72/x
  3. Step 3: Cross multiply
    31,356.08x = 43,217.52 × 29,879.72
  4. Step 4: Simplify right side
    31,356.08x = 1,291,327,396.69
  5. Step 5: Solve for x
    x = 1,291,327,396.69/31,356.08
  6. Step 6: Final answer
    x = 41,182.68

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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.