Home / 42,515.94-63,736.90-17,540.40

Finding the Fourth Proportional to 42,515.94, 63,736.90 and 17,540.40

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Solution

The fourth proportional to 42,515.94, 63,736.90 and 17,540.40 is: 26,295.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,515.94 : 63,736.90 = 17,540.40 : x
  2. Step 2: Convert to fraction form
    42,515.94/63,736.90 = 17,540.40/x
  3. Step 3: Cross multiply
    42,515.94x = 63,736.90 × 17,540.40
  4. Step 4: Simplify right side
    42,515.94x = 1,117,970,720.76
  5. Step 5: Solve for x
    x = 1,117,970,720.76/42,515.94
  6. Step 6: Final answer
    x = 26,295.33

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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.