Home / 31,378.22-47,057.36-10,313.40

Finding the Fourth Proportional to 31,378.22, 47,057.36 and 10,313.40

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Solution

The fourth proportional to 31,378.22, 47,057.36 and 10,313.40 is: 15,466.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378.22 : 47,057.36 = 10,313.40 : x
  2. Step 2: Convert to fraction form
    31,378.22/47,057.36 = 10,313.40/x
  3. Step 3: Cross multiply
    31,378.22x = 47,057.36 × 10,313.40
  4. Step 4: Simplify right side
    31,378.22x = 485,321,376.62
  5. Step 5: Solve for x
    x = 485,321,376.62/31,378.22
  6. Step 6: Final answer
    x = 15,466.82

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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.