Home / 18,731.70-28,050.57-16,956.45

Finding the Fourth Proportional to 18,731.70, 28,050.57 and 16,956.45

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Solution

The fourth proportional to 18,731.70, 28,050.57 and 16,956.45 is: 25,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731.70 : 28,050.57 = 16,956.45 : x
  2. Step 2: Convert to fraction form
    18,731.70/28,050.57 = 16,956.45/x
  3. Step 3: Cross multiply
    18,731.70x = 28,050.57 × 16,956.45
  4. Step 4: Simplify right side
    18,731.70x = 475,638,087.68
  5. Step 5: Solve for x
    x = 475,638,087.68/18,731.70
  6. Step 6: Final answer
    x = 25,392.15

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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.