Home / 31,705.62-47,558.49-9,518.91

Finding the Fourth Proportional to 31,705.62, 47,558.49 and 9,518.91

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Solution

The fourth proportional to 31,705.62, 47,558.49 and 9,518.91 is: 14,278.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,705.62 : 47,558.49 = 9,518.91 : x
  2. Step 2: Convert to fraction form
    31,705.62/47,558.49 = 9,518.91/x
  3. Step 3: Cross multiply
    31,705.62x = 47,558.49 × 9,518.91
  4. Step 4: Simplify right side
    31,705.62x = 452,704,986.05
  5. Step 5: Solve for x
    x = 452,704,986.05/31,705.62
  6. Step 6: Final answer
    x = 14,278.38

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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.