Home / 28,692.88-43,040.60-8,971.84

Finding the Fourth Proportional to 28,692.88, 43,040.60 and 8,971.84

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Solution

The fourth proportional to 28,692.88, 43,040.60 and 8,971.84 is: 13,458.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,692.88 : 43,040.60 = 8,971.84 : x
  2. Step 2: Convert to fraction form
    28,692.88/43,040.60 = 8,971.84/x
  3. Step 3: Cross multiply
    28,692.88x = 43,040.60 × 8,971.84
  4. Step 4: Simplify right side
    28,692.88x = 386,153,376.70
  5. Step 5: Solve for x
    x = 386,153,376.70/28,692.88
  6. Step 6: Final answer
    x = 13,458.16

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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.