Home / 40,216.91-55,499.01-22,311.89

Finding the Fourth Proportional to 40,216.91, 55,499.01 and 22,311.89

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Solution

The fourth proportional to 40,216.91, 55,499.01 and 22,311.89 is: 30,790.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,216.91 : 55,499.01 = 22,311.89 : x
  2. Step 2: Convert to fraction form
    40,216.91/55,499.01 = 22,311.89/x
  3. Step 3: Cross multiply
    40,216.91x = 55,499.01 × 22,311.89
  4. Step 4: Simplify right side
    40,216.91x = 1,238,287,653.19
  5. Step 5: Solve for x
    x = 1,238,287,653.19/40,216.91
  6. Step 6: Final answer
    x = 30,790.23

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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.