Home / 38,778.37-58,167.86-21,238.63

Finding the Fourth Proportional to 38,778.37, 58,167.86 and 21,238.63

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Solution

The fourth proportional to 38,778.37, 58,167.86 and 21,238.63 is: 31,858.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,778.37 : 58,167.86 = 21,238.63 : x
  2. Step 2: Convert to fraction form
    38,778.37/58,167.86 = 21,238.63/x
  3. Step 3: Cross multiply
    38,778.37x = 58,167.86 × 21,238.63
  4. Step 4: Simplify right side
    38,778.37x = 1,235,405,656.43
  5. Step 5: Solve for x
    x = 1,235,405,656.43/38,778.37
  6. Step 6: Final answer
    x = 31,858.11

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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.