Home / 43,339.60-65,009.40-12,175.12

Finding the Fourth Proportional to 43,339.60, 65,009.40 and 12,175.12

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Solution

The fourth proportional to 43,339.60, 65,009.40 and 12,175.12 is: 18,262.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,339.60 : 65,009.40 = 12,175.12 : x
  2. Step 2: Convert to fraction form
    43,339.60/65,009.40 = 12,175.12/x
  3. Step 3: Cross multiply
    43,339.60x = 65,009.40 × 12,175.12
  4. Step 4: Simplify right side
    43,339.60x = 791,497,246.13
  5. Step 5: Solve for x
    x = 791,497,246.13/43,339.60
  6. Step 6: Final answer
    x = 18,262.68

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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.