Home / 28,451.90-42,653.75-11,801.54

Finding the Fourth Proportional to 28,451.90, 42,653.75 and 11,801.54

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Solution

The fourth proportional to 28,451.90, 42,653.75 and 11,801.54 is: 17,692.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,451.90 : 42,653.75 = 11,801.54 : x
  2. Step 2: Convert to fraction form
    28,451.90/42,653.75 = 11,801.54/x
  3. Step 3: Cross multiply
    28,451.90x = 42,653.75 × 11,801.54
  4. Step 4: Simplify right side
    28,451.90x = 503,380,072.91
  5. Step 5: Solve for x
    x = 503,380,072.91/28,451.90
  6. Step 6: Final answer
    x = 17,692.32

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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.