Home / 39,288.60-58,934.85-11,212.80

Finding the Fourth Proportional to 39,288.60, 58,934.85 and 11,212.80

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Solution

The fourth proportional to 39,288.60, 58,934.85 and 11,212.80 is: 16,819.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,288.60 : 58,934.85 = 11,212.80 : x
  2. Step 2: Convert to fraction form
    39,288.60/58,934.85 = 11,212.80/x
  3. Step 3: Cross multiply
    39,288.60x = 58,934.85 × 11,212.80
  4. Step 4: Simplify right side
    39,288.60x = 660,824,686.08
  5. Step 5: Solve for x
    x = 660,824,686.08/39,288.60
  6. Step 6: Final answer
    x = 16,819.76

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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.