Home / 31,550.26-43,450.76-30,861.35

Finding the Fourth Proportional to 31,550.26, 43,450.76 and 30,861.35

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Solution

The fourth proportional to 31,550.26, 43,450.76 and 30,861.35 is: 42,502.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,550.26 : 43,450.76 = 30,861.35 : x
  2. Step 2: Convert to fraction form
    31,550.26/43,450.76 = 30,861.35/x
  3. Step 3: Cross multiply
    31,550.26x = 43,450.76 × 30,861.35
  4. Step 4: Simplify right side
    31,550.26x = 1,340,949,112.13
  5. Step 5: Solve for x
    x = 1,340,949,112.13/31,550.26
  6. Step 6: Final answer
    x = 42,502.00

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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.