Home / 31,340.76-47,018.06-11,619.32

Finding the Fourth Proportional to 31,340.76, 47,018.06 and 11,619.32

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Solution

The fourth proportional to 31,340.76, 47,018.06 and 11,619.32 is: 17,431.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,340.76 : 47,018.06 = 11,619.32 : x
  2. Step 2: Convert to fraction form
    31,340.76/47,018.06 = 11,619.32/x
  3. Step 3: Cross multiply
    31,340.76x = 47,018.06 × 11,619.32
  4. Step 4: Simplify right side
    31,340.76x = 546,317,620.78
  5. Step 5: Solve for x
    x = 546,317,620.78/31,340.76
  6. Step 6: Final answer
    x = 17,431.54

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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.