Home / 43,860.63-65,795.12-12,270.69

Finding the Fourth Proportional to 43,860.63, 65,795.12 and 12,270.69

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Solution

The fourth proportional to 43,860.63, 65,795.12 and 12,270.69 is: 18,407.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,860.63 : 65,795.12 = 12,270.69 : x
  2. Step 2: Convert to fraction form
    43,860.63/65,795.12 = 12,270.69/x
  3. Step 3: Cross multiply
    43,860.63x = 65,795.12 × 12,270.69
  4. Step 4: Simplify right side
    43,860.63x = 807,351,459.68
  5. Step 5: Solve for x
    x = 807,351,459.68/43,860.63
  6. Step 6: Final answer
    x = 18,407.20

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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.