Home / 38,957.58-58,399.37-12,643.92

Finding the Fourth Proportional to 38,957.58, 58,399.37 and 12,643.92

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Solution

The fourth proportional to 38,957.58, 58,399.37 and 12,643.92 is: 18,953.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,957.58 : 58,399.37 = 12,643.92 : x
  2. Step 2: Convert to fraction form
    38,957.58/58,399.37 = 12,643.92/x
  3. Step 3: Cross multiply
    38,957.58x = 58,399.37 × 12,643.92
  4. Step 4: Simplify right side
    38,957.58x = 738,396,962.33
  5. Step 5: Solve for x
    x = 738,396,962.33/38,957.58
  6. Step 6: Final answer
    x = 18,953.87

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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.