Home / 39,142.60-58,668.36-19,433.68

Finding the Fourth Proportional to 39,142.60, 58,668.36 and 19,433.68

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Solution

The fourth proportional to 39,142.60, 58,668.36 and 19,433.68 is: 29,127.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,142.60 : 58,668.36 = 19,433.68 : x
  2. Step 2: Convert to fraction form
    39,142.60/58,668.36 = 19,433.68/x
  3. Step 3: Cross multiply
    39,142.60x = 58,668.36 × 19,433.68
  4. Step 4: Simplify right side
    39,142.60x = 1,140,142,134.36
  5. Step 5: Solve for x
    x = 1,140,142,134.36/39,142.60
  6. Step 6: Final answer
    x = 29,127.91

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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.