Home / 14,790.24-20,415.78-13,040.64

Finding the Fourth Proportional to 14,790.24, 20,415.78 and 13,040.64

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Solution

The fourth proportional to 14,790.24, 20,415.78 and 13,040.64 is: 18,000.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,790.24 : 20,415.78 = 13,040.64 : x
  2. Step 2: Convert to fraction form
    14,790.24/20,415.78 = 13,040.64/x
  3. Step 3: Cross multiply
    14,790.24x = 20,415.78 × 13,040.64
  4. Step 4: Simplify right side
    14,790.24x = 266,234,837.30
  5. Step 5: Solve for x
    x = 266,234,837.30/14,790.24
  6. Step 6: Final answer
    x = 18,000.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.