Home / 38,778.77-58,168.37-13,819.77

Finding the Fourth Proportional to 38,778.77, 58,168.37 and 13,819.77

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Solution

The fourth proportional to 38,778.77, 58,168.37 and 13,819.77 is: 20,729.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,778.77 : 58,168.37 = 13,819.77 : x
  2. Step 2: Convert to fraction form
    38,778.77/58,168.37 = 13,819.77/x
  3. Step 3: Cross multiply
    38,778.77x = 58,168.37 × 13,819.77
  4. Step 4: Simplify right side
    38,778.77x = 803,873,747.36
  5. Step 5: Solve for x
    x = 803,873,747.36/38,778.77
  6. Step 6: Final answer
    x = 20,729.74

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1.5x scale

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.