Home / 22,742.16-31,384.24-13,183.90

Finding the Fourth Proportional to 22,742.16, 31,384.24 and 13,183.90

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Solution

The fourth proportional to 22,742.16, 31,384.24 and 13,183.90 is: 18,193.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,742.16 : 31,384.24 = 13,183.90 : x
  2. Step 2: Convert to fraction form
    22,742.16/31,384.24 = 13,183.90/x
  3. Step 3: Cross multiply
    22,742.16x = 31,384.24 × 13,183.90
  4. Step 4: Simplify right side
    22,742.16x = 413,766,681.74
  5. Step 5: Solve for x
    x = 413,766,681.74/22,742.16
  6. Step 6: Final answer
    x = 18,193.82

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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.