Home / 31,965.35-47,943.83-9,780.95

Finding the Fourth Proportional to 31,965.35, 47,943.83 and 9,780.95

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Solution

The fourth proportional to 31,965.35, 47,943.83 and 9,780.95 is: 14,670.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,965.35 : 47,943.83 = 9,780.95 : x
  2. Step 2: Convert to fraction form
    31,965.35/47,943.83 = 9,780.95/x
  3. Step 3: Cross multiply
    31,965.35x = 47,943.83 × 9,780.95
  4. Step 4: Simplify right side
    31,965.35x = 468,936,155.13
  5. Step 5: Solve for x
    x = 468,936,155.13/31,965.35
  6. Step 6: Final answer
    x = 14,670.14

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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.