Home / 26,783.10-40,131.45-16,904.70

Finding the Fourth Proportional to 26,783.10, 40,131.45 and 16,904.70

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Solution

The fourth proportional to 26,783.10, 40,131.45 and 16,904.70 is: 25,329.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,783.10 : 40,131.45 = 16,904.70 : x
  2. Step 2: Convert to fraction form
    26,783.10/40,131.45 = 16,904.70/x
  3. Step 3: Cross multiply
    26,783.10x = 40,131.45 × 16,904.70
  4. Step 4: Simplify right side
    26,783.10x = 678,410,122.82
  5. Step 5: Solve for x
    x = 678,410,122.82/26,783.10
  6. Step 6: Final answer
    x = 25,329.78

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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.