Home / 43,475.81-65,238.39-18,513.26

Finding the Fourth Proportional to 43,475.81, 65,238.39 and 18,513.26

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Solution

The fourth proportional to 43,475.81, 65,238.39 and 18,513.26 is: 27,780.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,475.81 : 65,238.39 = 18,513.26 : x
  2. Step 2: Convert to fraction form
    43,475.81/65,238.39 = 18,513.26/x
  3. Step 3: Cross multiply
    43,475.81x = 65,238.39 × 18,513.26
  4. Step 4: Simplify right side
    43,475.81x = 1,207,774,996.14
  5. Step 5: Solve for x
    x = 1,207,774,996.14/43,475.81
  6. Step 6: Final answer
    x = 27,780.39

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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.