Home / 28,228.44-42,250.98-20,829.84

Finding the Fourth Proportional to 28,228.44, 42,250.98 and 20,829.84

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Solution

The fourth proportional to 28,228.44, 42,250.98 and 20,829.84 is: 31,177.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,228.44 : 42,250.98 = 20,829.84 : x
  2. Step 2: Convert to fraction form
    28,228.44/42,250.98 = 20,829.84/x
  3. Step 3: Cross multiply
    28,228.44x = 42,250.98 × 20,829.84
  4. Step 4: Simplify right side
    28,228.44x = 880,081,153.24
  5. Step 5: Solve for x
    x = 880,081,153.24/28,228.44
  6. Step 6: Final answer
    x = 31,177.11

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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.