Home / 31,082.64-46,622.76-12,361.92

Finding the Fourth Proportional to 31,082.64, 46,622.76 and 12,361.92

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Solution

The fourth proportional to 31,082.64, 46,622.76 and 12,361.92 is: 18,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,082.64 : 46,622.76 = 12,361.92 : x
  2. Step 2: Convert to fraction form
    31,082.64/46,622.76 = 12,361.92/x
  3. Step 3: Cross multiply
    31,082.64x = 46,622.76 × 12,361.92
  4. Step 4: Simplify right side
    31,082.64x = 576,346,829.30
  5. Step 5: Solve for x
    x = 576,346,829.30/31,082.64
  6. Step 6: Final answer
    x = 18,542.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.