Home / 37,815.16-56,728.89-12,857.44

Finding the Fourth Proportional to 37,815.16, 56,728.89 and 12,857.44

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Solution

The fourth proportional to 37,815.16, 56,728.89 and 12,857.44 is: 19,288.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,815.16 : 56,728.89 = 12,857.44 : x
  2. Step 2: Convert to fraction form
    37,815.16/56,728.89 = 12,857.44/x
  3. Step 3: Cross multiply
    37,815.16x = 56,728.89 × 12,857.44
  4. Step 4: Simplify right side
    37,815.16x = 729,388,299.44
  5. Step 5: Solve for x
    x = 729,388,299.44/37,815.16
  6. Step 6: Final answer
    x = 19,288.25

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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.