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Finding the Fourth Proportional to 29,310.95, 43,950.02 and 12,660.59

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Solution

The fourth proportional to 29,310.95, 43,950.02 and 12,660.59 is: 18,983.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,310.95 : 43,950.02 = 12,660.59 : x
  2. Step 2: Convert to fraction form
    29,310.95/43,950.02 = 12,660.59/x
  3. Step 3: Cross multiply
    29,310.95x = 43,950.02 × 12,660.59
  4. Step 4: Simplify right side
    29,310.95x = 556,432,900.66
  5. Step 5: Solve for x
    x = 556,432,900.66/29,310.95
  6. Step 6: Final answer
    x = 18,983.79

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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.