Home / 43,481.64-65,222.40-12,316.92

Finding the Fourth Proportional to 43,481.64, 65,222.40 and 12,316.92

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Solution

The fourth proportional to 43,481.64, 65,222.40 and 12,316.92 is: 18,475.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,481.64 : 65,222.40 = 12,316.92 : x
  2. Step 2: Convert to fraction form
    43,481.64/65,222.40 = 12,316.92/x
  3. Step 3: Cross multiply
    43,481.64x = 65,222.40 × 12,316.92
  4. Step 4: Simplify right side
    43,481.64x = 803,339,083.01
  5. Step 5: Solve for x
    x = 803,339,083.01/43,481.64
  6. Step 6: Final answer
    x = 18,475.36

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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.