Home / 39,318.20-58,954.56-13,015.88

Finding the Fourth Proportional to 39,318.20, 58,954.56 and 13,015.88

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Solution

The fourth proportional to 39,318.20, 58,954.56 and 13,015.88 is: 19,516.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,318.20 : 58,954.56 = 13,015.88 : x
  2. Step 2: Convert to fraction form
    39,318.20/58,954.56 = 13,015.88/x
  3. Step 3: Cross multiply
    39,318.20x = 58,954.56 × 13,015.88
  4. Step 4: Simplify right side
    39,318.20x = 767,345,478.41
  5. Step 5: Solve for x
    x = 767,345,478.41/39,318.20
  6. Step 6: Final answer
    x = 19,516.29

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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.