Home / 31,356.69-47,034.82-7,664.40

Finding the Fourth Proportional to 31,356.69, 47,034.82 and 7,664.40

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Solution

The fourth proportional to 31,356.69, 47,034.82 and 7,664.40 is: 11,496.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,356.69 : 47,034.82 = 7,664.40 : x
  2. Step 2: Convert to fraction form
    31,356.69/47,034.82 = 7,664.40/x
  3. Step 3: Cross multiply
    31,356.69x = 47,034.82 × 7,664.40
  4. Step 4: Simplify right side
    31,356.69x = 360,493,674.41
  5. Step 5: Solve for x
    x = 360,493,674.41/31,356.69
  6. Step 6: Final answer
    x = 11,496.55

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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.