Home / 43,570.79-65,358.59-12,403.61

Finding the Fourth Proportional to 43,570.79, 65,358.59 and 12,403.61

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Solution

The fourth proportional to 43,570.79, 65,358.59 and 12,403.61 is: 18,606.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,570.79 : 65,358.59 = 12,403.61 : x
  2. Step 2: Convert to fraction form
    43,570.79/65,358.59 = 12,403.61/x
  3. Step 3: Cross multiply
    43,570.79x = 65,358.59 × 12,403.61
  4. Step 4: Simplify right side
    43,570.79x = 810,682,071.70
  5. Step 5: Solve for x
    x = 810,682,071.70/43,570.79
  6. Step 6: Final answer
    x = 18,606.09

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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.