Home / 26,807.91-40,192.14-12,777.78

Finding the Fourth Proportional to 26,807.91, 40,192.14 and 12,777.78

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Solution

The fourth proportional to 26,807.91, 40,192.14 and 12,777.78 is: 19,157.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,807.91 : 40,192.14 = 12,777.78 : x
  2. Step 2: Convert to fraction form
    26,807.91/40,192.14 = 12,777.78/x
  3. Step 3: Cross multiply
    26,807.91x = 40,192.14 × 12,777.78
  4. Step 4: Simplify right side
    26,807.91x = 513,566,322.65
  5. Step 5: Solve for x
    x = 513,566,322.65/26,807.91
  6. Step 6: Final answer
    x = 19,157.27

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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.