Home / 31,798.24-43,879.50-19,860.88

Finding the Fourth Proportional to 31,798.24, 43,879.50 and 19,860.88

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Solution

The fourth proportional to 31,798.24, 43,879.50 and 19,860.88 is: 27,406.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,798.24 : 43,879.50 = 19,860.88 : x
  2. Step 2: Convert to fraction form
    31,798.24/43,879.50 = 19,860.88/x
  3. Step 3: Cross multiply
    31,798.24x = 43,879.50 × 19,860.88
  4. Step 4: Simplify right side
    31,798.24x = 871,485,483.96
  5. Step 5: Solve for x
    x = 871,485,483.96/31,798.24
  6. Step 6: Final answer
    x = 27,406.72

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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.