Home / 28,263.26-42,387.80-11,627.88

Finding the Fourth Proportional to 28,263.26, 42,387.80 and 11,627.88

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Solution

The fourth proportional to 28,263.26, 42,387.80 and 11,627.88 is: 17,438.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,263.26 : 42,387.80 = 11,627.88 : x
  2. Step 2: Convert to fraction form
    28,263.26/42,387.80 = 11,627.88/x
  3. Step 3: Cross multiply
    28,263.26x = 42,387.80 × 11,627.88
  4. Step 4: Simplify right side
    28,263.26x = 492,880,193.72
  5. Step 5: Solve for x
    x = 492,880,193.72/28,263.26
  6. Step 6: Final answer
    x = 17,438.90

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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.