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Finding the Fourth Proportional to 35,300.80, 52,936.80 and 11,915.20

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Solution

The fourth proportional to 35,300.80, 52,936.80 and 11,915.20 is: 17,867.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,300.80 : 52,936.80 = 11,915.20 : x
  2. Step 2: Convert to fraction form
    35,300.80/52,936.80 = 11,915.20/x
  3. Step 3: Cross multiply
    35,300.80x = 52,936.80 × 11,915.20
  4. Step 4: Simplify right side
    35,300.80x = 630,752,559.36
  5. Step 5: Solve for x
    x = 630,752,559.36/35,300.80
  6. Step 6: Final answer
    x = 17,867.94

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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.