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Finding the Fourth Proportional to 29,000.39, 43,498.99 and 7,938.91

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Solution

The fourth proportional to 29,000.39, 43,498.99 and 7,938.91 is: 11,907.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,000.39 : 43,498.99 = 7,938.91 : x
  2. Step 2: Convert to fraction form
    29,000.39/43,498.99 = 7,938.91/x
  3. Step 3: Cross multiply
    29,000.39x = 43,498.99 × 7,938.91
  4. Step 4: Simplify right side
    29,000.39x = 345,334,438.11
  5. Step 5: Solve for x
    x = 345,334,438.11/29,000.39
  6. Step 6: Final answer
    x = 11,907.92

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1.5x scale

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.