Home / 31,549.76-43,450.07-30,860.85

Finding the Fourth Proportional to 31,549.76, 43,450.07 and 30,860.85

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Solution

The fourth proportional to 31,549.76, 43,450.07 and 30,860.85 is: 42,501.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,549.76 : 43,450.07 = 30,860.85 : x
  2. Step 2: Convert to fraction form
    31,549.76/43,450.07 = 30,860.85/x
  3. Step 3: Cross multiply
    31,549.76x = 43,450.07 × 30,860.85
  4. Step 4: Simplify right side
    31,549.76x = 1,340,906,169.91
  5. Step 5: Solve for x
    x = 1,340,906,169.91/31,549.76
  6. Step 6: Final answer
    x = 42,501.32

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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.