Home / 38,406.57-57,609.86-12,113.36

Finding the Fourth Proportional to 38,406.57, 57,609.86 and 12,113.36

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Solution

The fourth proportional to 38,406.57, 57,609.86 and 12,113.36 is: 18,170.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,406.57 : 57,609.86 = 12,113.36 : x
  2. Step 2: Convert to fraction form
    38,406.57/57,609.86 = 12,113.36/x
  3. Step 3: Cross multiply
    38,406.57x = 57,609.86 × 12,113.36
  4. Step 4: Simplify right side
    38,406.57x = 697,849,092.71
  5. Step 5: Solve for x
    x = 697,849,092.71/38,406.57
  6. Step 6: Final answer
    x = 18,170.04

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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.