Home / 29,019.76-43,532.78-12,381.55

Finding the Fourth Proportional to 29,019.76, 43,532.78 and 12,381.55

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Solution

The fourth proportional to 29,019.76, 43,532.78 and 12,381.55 is: 18,573.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,019.76 : 43,532.78 = 12,381.55 : x
  2. Step 2: Convert to fraction form
    29,019.76/43,532.78 = 12,381.55/x
  3. Step 3: Cross multiply
    29,019.76x = 43,532.78 × 12,381.55
  4. Step 4: Simplify right side
    29,019.76x = 539,003,292.21
  5. Step 5: Solve for x
    x = 539,003,292.21/29,019.76
  6. Step 6: Final answer
    x = 18,573.66

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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.