Home / 28,223.97-42,320.83-9,497.78

Finding the Fourth Proportional to 28,223.97, 42,320.83 and 9,497.78

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Solution

The fourth proportional to 28,223.97, 42,320.83 and 9,497.78 is: 14,241.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,223.97 : 42,320.83 = 9,497.78 : x
  2. Step 2: Convert to fraction form
    28,223.97/42,320.83 = 9,497.78/x
  3. Step 3: Cross multiply
    28,223.97x = 42,320.83 × 9,497.78
  4. Step 4: Simplify right side
    28,223.97x = 401,953,932.76
  5. Step 5: Solve for x
    x = 401,953,932.76/28,223.97
  6. Step 6: Final answer
    x = 14,241.58

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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.