Home / 40,892.16-61,346.88-13,188

Finding the Fourth Proportional to 40,892.16, 61,346.88 and 13,188

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Solution

The fourth proportional to 40,892.16, 61,346.88 and 13,188 is: 19,784.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,892.16 : 61,346.88 = 13,188 : x
  2. Step 2: Convert to fraction form
    40,892.16/61,346.88 = 13,188/x
  3. Step 3: Cross multiply
    40,892.16x = 61,346.88 × 13,188
  4. Step 4: Simplify right side
    40,892.16x = 809,042,653.44
  5. Step 5: Solve for x
    x = 809,042,653.44/40,892.16
  6. Step 6: Final answer
    x = 19,784.79

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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.