Home / 43,620.16-65,441.04-12,455.68

Finding the Fourth Proportional to 43,620.16, 65,441.04 and 12,455.68

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Solution

The fourth proportional to 43,620.16, 65,441.04 and 12,455.68 is: 18,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,620.16 : 65,441.04 = 12,455.68 : x
  2. Step 2: Convert to fraction form
    43,620.16/65,441.04 = 12,455.68/x
  3. Step 3: Cross multiply
    43,620.16x = 65,441.04 × 12,455.68
  4. Step 4: Simplify right side
    43,620.16x = 815,112,653.11
  5. Step 5: Solve for x
    x = 815,112,653.11/43,620.16
  6. Step 6: Final answer
    x = 18,686.60

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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.