Home / 38,610.04-57,919.38-12,308.68

Finding the Fourth Proportional to 38,610.04, 57,919.38 and 12,308.68

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Solution

The fourth proportional to 38,610.04, 57,919.38 and 12,308.68 is: 18,464.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,610.04 : 57,919.38 = 12,308.68 : x
  2. Step 2: Convert to fraction form
    38,610.04/57,919.38 = 12,308.68/x
  3. Step 3: Cross multiply
    38,610.04x = 57,919.38 × 12,308.68
  4. Step 4: Simplify right side
    38,610.04x = 712,911,114.22
  5. Step 5: Solve for x
    x = 712,911,114.22/38,610.04
  6. Step 6: Final answer
    x = 18,464.40

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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.