Home / 43,580.52-65,381.64-12,415.56

Finding the Fourth Proportional to 43,580.52, 65,381.64 and 12,415.56

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Solution

The fourth proportional to 43,580.52, 65,381.64 and 12,415.56 is: 18,626.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,580.52 : 65,381.64 = 12,415.56 : x
  2. Step 2: Convert to fraction form
    43,580.52/65,381.64 = 12,415.56/x
  3. Step 3: Cross multiply
    43,580.52x = 65,381.64 × 12,415.56
  4. Step 4: Simplify right side
    43,580.52x = 811,749,674.32
  5. Step 5: Solve for x
    x = 811,749,674.32/43,580.52
  6. Step 6: Final answer
    x = 18,626.43

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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.