Home / 39,174.40-58,769.04-12,886.72

Finding the Fourth Proportional to 39,174.40, 58,769.04 and 12,886.72

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Solution

The fourth proportional to 39,174.40, 58,769.04 and 12,886.72 is: 19,332.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,174.40 : 58,769.04 = 12,886.72 : x
  2. Step 2: Convert to fraction form
    39,174.40/58,769.04 = 12,886.72/x
  3. Step 3: Cross multiply
    39,174.40x = 58,769.04 × 12,886.72
  4. Step 4: Simplify right side
    39,174.40x = 757,340,163.15
  5. Step 5: Solve for x
    x = 757,340,163.15/39,174.40
  6. Step 6: Final answer
    x = 19,332.53

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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.