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Finding the Fourth Proportional to 29,145, 43,724.88 and 8,368.50

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Solution

The fourth proportional to 29,145, 43,724.88 and 8,368.50 is: 12,554.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,145 : 43,724.88 = 8,368.50 : x
  2. Step 2: Convert to fraction form
    29,145/43,724.88 = 8,368.50/x
  3. Step 3: Cross multiply
    29,145x = 43,724.88 × 8,368.50
  4. Step 4: Simplify right side
    29,145x = 365,911,658.28
  5. Step 5: Solve for x
    x = 365,911,658.28/29,145
  6. Step 6: Final answer
    x = 12,554.87

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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.