Home / 40,842.98-61,178.35-18,675

Finding the Fourth Proportional to 40,842.98, 61,178.35 and 18,675

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Solution

The fourth proportional to 40,842.98, 61,178.35 and 18,675 is: 27,973.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,842.98 : 61,178.35 = 18,675 : x
  2. Step 2: Convert to fraction form
    40,842.98/61,178.35 = 18,675/x
  3. Step 3: Cross multiply
    40,842.98x = 61,178.35 × 18,675
  4. Step 4: Simplify right side
    40,842.98x = 1,142,505,639.56
  5. Step 5: Solve for x
    x = 1,142,505,639.56/40,842.98
  6. Step 6: Final answer
    x = 27,973.12

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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.