Home / 40,889.66-61,334.70-12,426.88

Finding the Fourth Proportional to 40,889.66, 61,334.70 and 12,426.88

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Solution

The fourth proportional to 40,889.66, 61,334.70 and 12,426.88 is: 18,640.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,889.66 : 61,334.70 = 12,426.88 : x
  2. Step 2: Convert to fraction form
    40,889.66/61,334.70 = 12,426.88/x
  3. Step 3: Cross multiply
    40,889.66x = 61,334.70 × 12,426.88
  4. Step 4: Simplify right side
    40,889.66x = 762,198,956.74
  5. Step 5: Solve for x
    x = 762,198,956.74/40,889.66
  6. Step 6: Final answer
    x = 18,640.38

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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.