Home / 31,964.16-47,957.76-11,190.72

Finding the Fourth Proportional to 31,964.16, 47,957.76 and 11,190.72

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Solution

The fourth proportional to 31,964.16, 47,957.76 and 11,190.72 is: 16,790.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,964.16 : 47,957.76 = 11,190.72 : x
  2. Step 2: Convert to fraction form
    31,964.16/47,957.76 = 11,190.72/x
  3. Step 3: Cross multiply
    31,964.16x = 47,957.76 × 11,190.72
  4. Step 4: Simplify right side
    31,964.16x = 536,681,863.99
  5. Step 5: Solve for x
    x = 536,681,863.99/31,964.16
  6. Step 6: Final answer
    x = 16,790.11

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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.