Home / 31,976.01-47,956.23-14,196.90

Finding the Fourth Proportional to 31,976.01, 47,956.23 and 14,196.90

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Solution

The fourth proportional to 31,976.01, 47,956.23 and 14,196.90 is: 21,291.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,976.01 : 47,956.23 = 14,196.90 : x
  2. Step 2: Convert to fraction form
    31,976.01/47,956.23 = 14,196.90/x
  3. Step 3: Cross multiply
    31,976.01x = 47,956.23 × 14,196.90
  4. Step 4: Simplify right side
    31,976.01x = 680,829,801.69
  5. Step 5: Solve for x
    x = 680,829,801.69/31,976.01
  6. Step 6: Final answer
    x = 21,291.89

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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.