Home / 28,311.24-39,001.98-19,797.44

Finding the Fourth Proportional to 28,311.24, 39,001.98 and 19,797.44

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Solution

The fourth proportional to 28,311.24, 39,001.98 and 19,797.44 is: 27,273.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,311.24 : 39,001.98 = 19,797.44 : x
  2. Step 2: Convert to fraction form
    28,311.24/39,001.98 = 19,797.44/x
  3. Step 3: Cross multiply
    28,311.24x = 39,001.98 × 19,797.44
  4. Step 4: Simplify right side
    28,311.24x = 772,139,358.93
  5. Step 5: Solve for x
    x = 772,139,358.93/28,311.24
  6. Step 6: Final answer
    x = 27,273.24

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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.