Home / 29,156.71-43,727.76-8,380.21

Finding the Fourth Proportional to 29,156.71, 43,727.76 and 8,380.21

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Solution

The fourth proportional to 29,156.71, 43,727.76 and 8,380.21 is: 12,568.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,156.71 : 43,727.76 = 8,380.21 : x
  2. Step 2: Convert to fraction form
    29,156.71/43,727.76 = 8,380.21/x
  3. Step 3: Cross multiply
    29,156.71x = 43,727.76 × 8,380.21
  4. Step 4: Simplify right side
    29,156.71x = 366,447,811.63
  5. Step 5: Solve for x
    x = 366,447,811.63/29,156.71
  6. Step 6: Final answer
    x = 12,568.22

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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.