Home / 31,176.98-46,772.39-8,988.62

Finding the Fourth Proportional to 31,176.98, 46,772.39 and 8,988.62

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Solution

The fourth proportional to 31,176.98, 46,772.39 and 8,988.62 is: 13,484.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,176.98 : 46,772.39 = 8,988.62 : x
  2. Step 2: Convert to fraction form
    31,176.98/46,772.39 = 8,988.62/x
  3. Step 3: Cross multiply
    31,176.98x = 46,772.39 × 8,988.62
  4. Step 4: Simplify right side
    31,176.98x = 420,418,961.40
  5. Step 5: Solve for x
    x = 420,418,961.40/31,176.98
  6. Step 6: Final answer
    x = 13,484.92

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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.