Home / 38,796.22-58,196.64-12,147.20

Finding the Fourth Proportional to 38,796.22, 58,196.64 and 12,147.20

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Solution

The fourth proportional to 38,796.22, 58,196.64 and 12,147.20 is: 18,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,796.22 : 58,196.64 = 12,147.20 : x
  2. Step 2: Convert to fraction form
    38,796.22/58,196.64 = 12,147.20/x
  3. Step 3: Cross multiply
    38,796.22x = 58,196.64 × 12,147.20
  4. Step 4: Simplify right side
    38,796.22x = 706,926,225.41
  5. Step 5: Solve for x
    x = 706,926,225.41/38,796.22
  6. Step 6: Final answer
    x = 18,221.52

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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.