Home / 30,942.72-46,373.76-12,464.64

Finding the Fourth Proportional to 30,942.72, 46,373.76 and 12,464.64

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Solution

The fourth proportional to 30,942.72, 46,373.76 and 12,464.64 is: 18,680.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,942.72 : 46,373.76 = 12,464.64 : x
  2. Step 2: Convert to fraction form
    30,942.72/46,373.76 = 12,464.64/x
  3. Step 3: Cross multiply
    30,942.72x = 46,373.76 × 12,464.64
  4. Step 4: Simplify right side
    30,942.72x = 578,032,223.85
  5. Step 5: Solve for x
    x = 578,032,223.85/30,942.72
  6. Step 6: Final answer
    x = 18,680.72

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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.